PHARMACOLOGY

1. In the autonomic regulation of d. Pilocarpine a. Cardiac output is maintained constant at the expense of e. Neostigmine other hemodynamic variables b. Elevation of blood pressure results in elevated aldosterone 8. overdose may cause which one of the following secretion a. Gastrointestinal smooth muscle crampine c. Baroreceptor nerve fibers docrease firing rate when arterial b. Increased cardiac rate pressure increases c. Increased gastric secretion d. Stroke volume and mean arterial blood pressure are the d. Pupillary constriction primary direct determinants of cardiac output e. Urinary frequency e. A condition that reduces the sensitivity of the sensory baroreceptor nerve endings might cause an increase 9. The synaptic preganglionicneurons have their cell bodies in insympathetic discharge the lateral horn of the grey matter of the a. Thoracic segment only 2. The autonomic nervous system is also known as b. Lumbar segment only a. Visceral c. Both (a) and (b) b. Vegetative d. None of the above c. Involuntary nervous system d. All of the above 10. Which one of the following can be blocked by atropine? a. Decreased blood pressure caused by hexamethonium 3. Full activation of the sympathetic nervous system, as in maximal exercise, can produce all of the following responses b. Increased blood pressure caused by except c. Increased skeleton muscle strength caused by neostigmine a. Bronchial relaxation d. caused by exercise b. Decreases intestinal motility e. Tachycardia caused by infusion of c. Increased renal blood flow 11. Which of the following best describes the mechanism of d. Mydriasis action of scopolamine ? e. Increased (tachycardia) a. Irreversible antagonist at nicotinic receptors 4. Several children at a summer camp were hospitalized b. Irreversible antagonist at muscarinic receptors with symptoms thought to be due to ingestion of food c. Physiologic antagonist at muscarinic receptors containingbotulinum toxins. The effects of botulinum toxin d. Reversible antagonist at muscarinic receptors are likely to include e. Reversible antagonist at nicotinic receptors a. Bronchospasm b. Cycloplegia 12. Accepted therapeutic indications for the use of antimuscarinic c. Diarrhea drugs include all of the following except d. Skeletal muscle spasms a. e. Hyperventilation b. Motion sickness c. Parkinson’s disease 5. The neurotransmitter agent that is normally released in the d. Postoperative bladder spasm sinoatrial node of the heart in response to a blood pressure increase is e. Traveler’s diarrhea a. Acetylcholine 13. In male sex organs ______system is responsible for erection. b. a. Sympathetic c. Epinephrine b. Parasympathetic d. Glutamate c. e. Norepinephrine d. None of the above

6. A directactingcholinomimetic that is lipidsolubleand often 14. A 7yearsoldboy has a significant bedwetting problem. A used in the treatment of glaucoma is longactingindirect sympathomimetic agent sometimes used a. Acetylcholine by the oral route for this and otherindications is b. Bethanechol a. c. Physostigmine b. d. Pilocarpine c. Epinephrine e. Neostigmine d. Isoproterenol e. 7. Which of the following agents is a prodrug that is much less toxic in mammals than in insects ? 15. When pupillary dilationbutnot cycloplegiaisdesired, a good a. Acetylcholine choice is b. Bethanechol a. Homatropine c. Physostigmine b. Isoproterenol c. Phenylephrine 1296 d. Pilocarpine 24. Postural is a common adverse effect of which one e. Tropicamide of the following types of drugs ? a. ACE inhibitors 16. ‘Fight or flight’ state can be described as b. Alphareceptorblockers a. Sympathetic active; parasympatheticquiescent c. Arteriolar dilators b. Sympathetic active; parasympatheticactive d. ß1 – selective blockers c. Sympathetic quiescent; parasympatheticactive e. Nonselective ß blockers

17. Your patient is to receive a selective ß2 drug ß2 25. A visitor from another city comes to your office complaining selective stimulant are often effective in of incessant cough. He has diabetes and hypertension and a. due to coronary insufficiency has recently started taking a different antihypertensive b. . The most likely cause of his cough is c. Chronic heart failure a. Enalapril d. Delayed or insufficiently strong labor b. Losartan 's e. All of the above c. Minoxidil d. MCQ 18. Which of the following drugs is the drug of choice in e. anaphylaxis associated with bronchospasm and hypotension ? a. Cortisone 26. Reserprine, an alkaloid derived from the root of b. Epinephrine Rauwolfiaserpentina c. Isoproterenol a. Can be used to control hyperglycemia d. Norepinephrine b. Can cause severe depression of mood e. Phenylephrine c. Can decrease gastrointestinal secretion and motility d. Has no cardiac effects 19. Which of the following effects of epinephrine would be e. A spare receptor blocked by but not by ? a. Cardiac stimulation 27. Nitroglycerin, either directly or through reflexes, results in b. Contractionof radial smooth muscle in the iris which one of the following effects c. Increase of camp in fat a. Decreased heart rate d. Relaxation of bronchial smooth muscle b. Decreased venous capacitance e. Relaxation of the uterus c. Increased afterload d. Increased cardiac force 20. Propranolol is useful in all of the following except e. Increased diastolic intramyocardial fiber tension a. Angina b. Familial tremor 28. The effect of propranolol may be attributed to which one of the following c. Hypertension a. Block of exercise – induced tachycardia d. Idiopathic hypertrophic subaortic cardiomyopathy b. Decreased end – diastolic ventricular volume e. Partial atrioverntricular c. Dilation of consticted coronary vessels 21. ‘Rest and digest’ state can be described as d. Increased cardiac force a. Sympathetic active; parasympatheticquiescent e. Increased resting heart rate b. Sympathetic active; parasympatheticactive 29. The major common determinant of myocardial oxygen c. Sympathetic quiescent; parasympatheticactive consumption is 22. A friend has very severe hypertension and asks about a drug a. Blood volume her doctor wishes to prescribe. Her physician has explained b. Cardiac output that this drug is associated with tachycardia and fluid retention c. Diastolic blood pressure (which may be marked) and increased hair growth. Which of the following is most likely to produce the effects that your d. Heart rate friend has described? e. Myocardial fiber tension a. Captopril 30. Choose the incorrect statement from the following b. a. Sympathetic system increases rate of SA node c. Minoxidil b. Sympathetic system causes constriction of coronary arteries d. c. Sympathetic system causes increased motility of GIT e. Propranolol smooth muscles 23. Which one of the following is characteristic of captopril and d. Sympathetic system causes constriction of sphincter in GIT enalapril ? 31. Denervation supersensitivityincludes a. Competitively blocks angiotensim II at its receptor a. Proliferation of receptors b. Decreases angiotensin II concentration in the blood b. Loss of mechanism for transmitter removal c. Decreases rennin concentration in the blood c. Increased postjunctionalresponsiveness d. Increases sodium and decreases potassium in the blood d. All of the above e. Decreases sodium and increases potassium in the urine 32. Which of the following is approved for the treatment of c. –100 1297 hemorrhagic stroke ? d. –20 a. Amyl nitrite b. Hydralazine 40. Following is involved in the synthesis of actylcholine a. Choline acetyl transferase c. Isosorbidemoninitrate b. Acetyl cholinesterase d. Nifedipine c. Both (a) and (b) e. Nimodipine d. None of the above 33. Which of the following drugs used for the treatment of angina by inhalation has a very rapid onset and a brief duration of 41. Which of the following has been shown to prolong life in effect ? patient with chronic congestive failure but has a negative a. Amyl nitrite inotropic effect on cardiac contractility? a. PHARMACOLOGY b. Hydralazine b. Digitoxin c. Isosorbidemononitrate c. Digoxin d. Nifedipine d. Dobutamine e. Nimodipine e. Enalapril 34. Which of the following is a vasodilator drug used for hypertension that lacks a direct effect on autonomic receptors 42. Which of the following is the drug of choice in treating but may provoke anginal attacks? suicidal overdose of digitoxin ? a. Amyl nitrite a. Digoxin antibodies b. Hydralazine b. c. Isosorbidemononitrate c. Magnesium d. Nifedipine d. Potassium e. Nimodipine e.

35. The biochemical mechanism of action of digitalis is associated 43. When used as an antiarrhythmic drug, Lidocaine typically with a. Increases action potential duration a. A decrease in calcium uptake by the sarcoplasmic reticulum b. Increases contractility b. An increase in ATP synthesis c. Increses PR interval c. A modification of the actin molecule d. Reduces abnormal automaticity d. An increase in systolic intracellular calcium levels e. Reduces resting potential e. A block of sodium/calcium exchange 44. A 16yearoldgirlis found to have paroxysmal attacks of rapid 36. A patient has been taking digoxin for several years for chronic heart rate. The antiarrhythmic of choice in most cases of acute heart failure is about to receive atropine for another condition. AV nodal tachycardia is A common effect of digoxin (attherapeutic blood levels) that a. Adenosine can be almost entirely blocked by atropine is b. Amiodarone a. Decreased appetite c. Flecainide b. Increased atrial contractility d. Propranolol c. Increased PR interval on the ECG e. Quinidine d. Headaches e. Tachycardia 45. Recognized adverse effects of quinidine include which one of the following? 37. In a patient given a cardiac glycoside, important effects of the a. Cinchonism drug on the heart include which of the following? b. Constipation a. Decreased atrioventricular conduction velocity c. Lupus erythematosus b. Decreased ejection time d. Increase in digoxin clearance c. Increased ectopic automaticity e. Precipitation of hyperthyroidism d. Increased ectopic automaticity e. All of the above 46. Following is an antagonist of ganglion type nicotinic receptors a. Tubercurarine 38. Which of the following situations constitutes an added risk of b. abungarotoxin ? c. Trimethaphan a. Starting administration of captopril d. All of the above b. Starting administration of quinidine c. Hyperkalemia 47. Which of the following is an orally active drug that blocks d. Hypermagnesemia sodium channels and decreases action potential duration? e. Hypocalcemia a. Adenosine b. Amiodarone 39. At rest, the interior of the typical mammalian neuronal axon c. Disopyramide potential is approximately ______mV d. Esmolol a. 0 e. b. –70 1298 48. Which of the following has the longest halflifeof all 56. Which one of the following is lest likely to be useful in the antiarrhythmic drugs? therapy of hypercalcemia? a. Adenosine a. Calcitonin b. Amiodarone b. c. Disopyramide c. Plicamycin d. Esmolol d. Parenteral infusion of phosphate e. Flecainide e. Thiazide diuretics

49. Which of the following diuretics would be most useful in a 57. Characteristics of Vitamin D and its metabolites include patient with cerebral edema? which one of the following? a. Acetazolamide a. Act to decrease serum levels of calcium b. Amiloride b. Activation of their Vitamin D receptors increases cellular c. Ethacrynic acid CAMP d. Furosemide c. Calcitriol is the major derivative responsible for increasing 's intestinal absorption of phosphate e. Mannitol d. Metabolites of Vitamin D increase renal excretion of calcium MCQ 50. Which of the following therapies would be most useful in the e. Vitamin D deficiency results in Pager’s disease management of severe hypercalcemia? a. Amiloride plus saline infusion 58. Which of the following conditions is an indication for the use of calcitonin? b. Furosemide plus saline infusion a. Chronic renal failure c. Hydrochlorothiazide plus saline infusion b. Hypoparathyroidism d. Mannitol plus saline infusion c. Intestinal osteodystrophy e. Spironolactone plus saline infusion d. Pager’s disease 51. A 55yearoldpatient with severe posthepatitis cirrhosis is e. Rickets started on a diuretic for another condition. Two days later he is found in a coma. The drug most likely to cause coma in a 59. Clinical uses of Vitamin D do not include patient with cirrhosis is a. Chronic renal failure a. Acetazolamide b. Hyperparathyroidism b. Amiloride c. Intestinal osteodystrophy c. Furosemide d. Nutritional rickets d. Hydrochlorothiazide e. Osteoporosis e. Spironolactone 60. Which one of the following drugs, when used chronically, 52. Oxytremorine is a selective agonist of muscarinic ______is associated with the development of bone pain and receptors mineralization defects such as osteomalacia? a. M1 a. Calcitonin b. M2 b. Dihydrotachysterol c. M3 c. Ergocalciferol d. M4 d. Etidronate e. Norgestrel 53. A drug that is useful in glaucoma and highaltitudesickness is a. Acetazolamide 61. A 70yearoldman has severe urinary hesitancy associated with b. Amiloride benign prostatic hyperplasia. He has tried alpha blockers with little relief. His physician recommends a drug that blocks 5a c. Demeclocycline reductasein the prostateand writes a prescription for d. Desmopressin a. Atropine e. Ethacrynic acid b. 54. Cromolyn has as its major action c. Hydralazine a. Block of calcium channels in lymphocytes d. Neostigmine b. Block of mediator release from mast cells e. Propranolol

c. Block of phosphodiesterase in mast cells and 62. Action of norepinephrine and epinephrine are terminated by d. Smooth muscle relaxation in the bronchi a. Reuptake into nerve terminal e. Stimulation of cortisol release by the adrenals b. Dilution by diffusion and uptake at extraneuronal site 55. Following events occur in the cytoplasm and not inside storage c. Metabolic transformation vesicles, except d. All of the above a. Conversion of to dopa 63. Typical results of betareceptoractivation include which one of b. Conversion of dopa to dopamine the following? c. Conversion of dopamine to norepinephrine a. Hypoglycemia d. Conversion of dopamine to 3,4 dihydroxy phenyl acetic acid b. Lipolysis c. Glycogen synthesis d. Decreased skeletal muscle tremor c. Is longer acting 1299 e. Decreased rennin secretion d. Has weaker antimotion sickness activity

64. A patient is admitted to the emergency room with orthostatic 73. Which of the following drugs is primarily hypotension and evidence of marked GI bleeding. Which used in preanaesthetic medication and during surgery of the following most accurately describesthe probable a. Glycopyrrolate autonomic response to this bleeding? b. Pipenzolate methyl bromide a. Slow heart rate, dilated pupils, damp skin c. Isopropamide b. Rapid heart rate, dilated pupils, damp skin d. Dicyclomine c. Slow heart rate, dry skin, increased bowel sounds d. Rapid heart rate, constricted pupils, increased bowel sounds 74. Glycopyrrolate is the preferred antimuscannic drug for use e. Rapid heart rate, constricted pupils, warm skin before and during surgery because a. It is potent and fast acting PHARMACOLOGY 65. Drugs that block the a receptor on effector cells at b. It has no central action nerve endings c. It has antisecretory and vagolytic actions a. Antagonize the effects of isoproterenol on the heart rate d. All of the above b. Antagonize some of the effects of epinephrine on the blood pressure 75. Which of the following mydriatics has the fastest and briefest c. Antagonize the effects of epinephrine on adenylyl cyclase action ? d. Cause mydriasis a. Atropine e. Decreases blood glucose levels b. Homatropine c. Tropicamide 66. is an antagonist of ______receptors. d. Cyclopentolate a. a1 b. a2 76. The most suitable mydratic for a patient of corneal ulcer is c. both (a) and (b) a. Atropine sulfate d. None of the above b. Homatropine c. Cyclopentolate 67. Which of the following organs is innervated only by d. Tropicamide parasympathetic nerves ? a. Iris muscles 77. The most effective antidote for belladonna poisoning is b. Ciliary muscle a. Neostigmine c. Sweat glands b. Physostigmine d. Splenic capsule c. Pilocarpine d. Methacholine 68. Muscarinic cholinergic receptors a. Are located only on parasympathetically innervated effector 78. Atropine is contraindicated in cells a. Cyclic AMP b. Mediate responses by opening an instrinsic Na+ ion channel b. Inositol trisphosphate c. Are present on vascular endothelium which has no c. Diacylglycerols cholinergic nerve supply d. G protein d. Predominate in the autonomic ganglia 79. Select the correct statement from the following about a1 – 69. The cardiac muscarinic receptors a. Are of the M1 subtype a. Isoproterenol > epinephrine = norepinephrine b. Are of the M2 subtype b. Epinephrine > isoproterenol > norepinephrine c. Are selectively blocked by pirenzepine c. Isoproterenol = epinephrine = norepinephrine d. Function through the PIP2 ? IP3/DAG pathway d. Epinephrine = norepinephrine > isoproterenol 70. Atropine does not exert relaxant/ antispasmodic effect on the 80. The most efficacious inhibitor of synthesis in following muscle the body is a. Intestinal a. a methyl– p tyrosine b. Ureteric b. a c. Bronchial c. a methylnorepinephrine d. Layngeal d. Pyrogallol 71. a1 – receptors are coupled with ______G protein. 81. induces release of noradrenaline from adrenergic a. Gs nerve endings b. Gi a. By depolarizing the axonal membrane c. Gq b. By mobilizing Ca2+ d. Go c. By a nonexocytotic process d. Only in the presence of MAO inhibitors 72. Hyoscine differs from atropine in that it a. Exerts depressant effects on the CNS at relatively low doses b. Exerts more potent effects on the heart than on the eye 1300 82. Choose the correct statement from the following about a1 – c. adrenergic receptor agonists d. a. Norepinephrine > isoproterenol > epinephrine b. Norepinephrine < epinephrine > isoproterenol 92. Vasoconstrictors should not be used in a. Neurogenic shock c. Epinephrine = norepinephrine >> isoproterenol b. Haemorrhagic shock d. Epinephrine > isoproterenol > norepinephrine c. Secondary shock 83. A sympathomimetic amine that acts almost exclusively by d. Hypotension due to spinal anaesthesia releasing noradrenaline from the nerve endings is a. Ephedrine 93. Guanethidine inhibits b. Dopamine a. Synthesis of transmitter c. Isoprenaline b. Metabolism of transmitter d. Tyramine c. Release of transmitter d. Displacement of transmitter from axonal terminal 's 84. Low doses of dilate the following vascular bed a. Cutaneous 94. The drug which produces vasoconstriction despite being an a MCQ b. Mucosal adrenergic blocker is a. c. Renal b. d. Skeletal muscle c. Dihydroergotoxine 85. a2–adrenergic receptors are associated with following except d. a. Increase in phospholipase C activity b. Increase in potassium channel conductance 95. Prazosin is an effective antihypertensive while nonselective a adrenergic blockers are not because c. Decrease in calcium channel conductance a. It is the only orally active a blocker d. Increase in adenylyl cyclase activity b. It improves plasma lipid profile 86. Adrenaline raises blood glucose level by the following actions c. It does not concurrently enhance noradrenaline release except d. It improves urine flow in males with prostatic hypertrophy a. Inducing hepatic glycogenolysis b. Inhibiting insulin secretion from pancreatic ß cells 96. Which of the following is true of sildenafil a. It enhances sexul enjoyment in normal men c. Augmenting glucagons secretion from pancreatic a cells b. It delays ejaculation d. Inhibiting peripheral glucose utilization c. It is indicated only for treatment of erectile dysfunction in 87. Noradrenaline is administered by men a. Subcutaneous injection d. It blocks cavernosal a2 adrenoceptors b. Intramuscular injection 97. The ßadrenergicblocker which possesses both ß1 selectivity c. Slow intravenous infusion as well as intrinsic sympathomimetic activity is d. All of the above routes a. 88. Dobutamine differs from dopamine in that b. a. It does not activate peripheral receptors c. b. It does not activate adrenergic ß receptors d. Metoprolol c. It causes pronounced tachycardia 98. Propanolol can be used to allay anxiety associated with d. It has good bloodbrain barrier penetrability a. Chronic neurotic disorer 89. Ephedrine is similar to adrenaline in the following feature b. Schizopherenia a. Potency c. Shortterm stressful situation b. Inability to penetrate bloodbrainbarrier d. Endogenous depression c. Duration of action 99. Propranolol does not block the following action of adrenaline d. Producing both a and ß adrenergic effects a. Bronchodilation 90. Continuous exposure of ctecholaminesensitive cells and b. Lipolysis tissues to adrenergic agonists causes a progressive diminition c. Muscle tremor in their capacity to respond, thisphenomenon is called as d. Mydriasis a. Refractoriness b. Desensitization 100. Phenylephrine a. Mimics the transmitter at postsynapticreceptors c. Tachyphylaxis b. Displaces transmitter from axonal terminal d. All of the above c. Inhibits synthesis of transmitter 91. While undergoing a surgical procedure a patient develops d. None of the above hypotension. Which of the following drugs can be injected intramuscularly to raise his BP a. Noradrenaline b. Isoprenaline 101. Aminoethylimidazole is? 109. Following is an example of paraaminophenol NSAID 1301 a. 2methyl a. b. Histamine b. Acetaminophen c. 2pyridyl ethylamine c. d. 4methyl histamine d.

102. Agents that often cause vasoconstriction include all of the 110. This drug, which does not activate receptors, has been following except proposed as a maintenance drug in treatment programs for a. Angiotensin II opioid addicts; a singly oral dose will block the effects of injected for up to 48 hours b. a. c. PGF2a b.

d. Prostacyclin PHARMACOLOGY c. e. d. 103. Inflammation is a complex tissue reaction that includes e. Propoxyphene the release of cytokines, , , and peptides. Prostaglandins involved in inflammatory processes 111. Which one of the following statements about are produced from by dextromethorphan is accurate? a. Cyclooxygenase 1 a. Activates kappa receptors b. Cyclooxygenase 2 b. Analgesia equivalent to c. Glutathione – S – transferase c. Highly effective antiemetic d. Lipoxygenase d. Less constipation than e. Phospholipase A2 e. Use requires a prescription

104. A 60yearold woman has glaucoma following cataract surgery. 112. Which one of the following effects does not occur in salicylate Which of the following can be used to reduce intraocular intoxication ? pressure? a. Hyperventilation a. LTD4 or its analogs b. Hypothemia b. E2 or its analogs c. Metabolic acidosis c. Prostaglandin F2a or its analogs d. Respiratory alkalosis d. Slowreacting substance of anaplylaxis (SRSA) e. Tinnitus e. Thromboxane A2 or its analogs 113. Which one of the following drugs is not useful in 105. Which of the following is a reversible inhibitor of dysmenorrhea? cyclooxygenase? a. a. Alprostadil b. Colchicine b. Aspirin c. c. Ibuprofen d. d. LTC4 e. e. 114. Following gold compound is generally administered orally 106. by prostaglandins involves a. Aurothioglucose a. Arterioles b. Auronafin b. Precapillary sphincters c. Gold sodium thiomalate c. Postcapillary venules d. All of the above d. All of the above 115. The main advantage of over aspirin is that ketorolac 107. transdermal patches have been used postoperatively a. Can be combined more safely with an opioid such as to provide transdermal analgesia. The most dangerous adverse codeine effect of this mode of administration is b. Can be obtained as an overthecounter agent a. Cutaneous reactions c. Does not prolong the bleeding time b. Diarrhea d. Is available in a parenteral formulation that can be injected c. Hypertension intramuscularly or intravenously d. Relaxation of skeletal muscle e. Is less likely to cause acute renal failure in patients with e. Respiratory depression some preexisting degree of renal impairment

108. Opioid are either contraindicated or must be 116. A 45yearold surgeon has developed symmetric early morning used with extreme caution in several clinical situations. For stiffness in her hands. She wishes to take a nonsteroidal anti- , such situations do not include inflammatory drug to relieve these symptoms and wants to a. Aqueous diffusion avoid gastrointestinal side effects. Which one of the following drugs is most appropriate? b. Aqueous hydrolysis a. Aspirin c. Lipid diffusion b. Celecoxib d. Pinocytosis or endocytosis c. Ibuprofen e. Special carrier transport 1302 d. Indomethacin d. Misoprostol e. Piroxicam e. Tacrolimus

117. Following is an example of preformed and not lipid derived 125. Acetyl is soluble in mediator of inflammatory process a. An aqueous base a. LTC4 b. Water b. PGD2 c. An aqueous acid c. PAF d. Histamine 126. Decomposition of the acetyl salicylic acid at room temperature most likely would occur by 118. The toxicity spectrum of aspirin does not include a. Oxidation of the ester a. Increased risk of encephalopathy in children with viral b. Reduction of the carboxylic acid infections c. Hydrolysis of the ester b. Increased risk of peptic ulcers 127. Diamprit is an agonist of ______receptors, except 's c. Hyperprothrombinemia a. H1 d. Metabolic acidosis MCQ b. H2 e. Respiratory alkalosis c. H3 119. Accidental poisonings are common with both aspirin and d. All of the above ibuprofen, two OC drugs available in tasty chewable tablets. In cases of overdose, aspirin is more likely than ibuprofen to 128. Which of the following is ultimately responsible cause for the production of prostaglandins associated with a. Autonomic Instability inflammatory reactions? b. Hepatic necrosis a. Phospholipase c. Metabolic acidosis b. Lipoxygenase d. Thrombocytopenia c. CyclooxygenaseI e. Ventricular d. Cyclooxygenase II e. oxidase 120. A drug that decreases blood pressure and has and spasmolytic effects when given intrathecally is 129. Which of the following prostaglandin analogs is a. Atenolol used specifically for the treatment of NSAID induced b. Clonidine gastrointestinal ulcertation? a. Alprostadil c. Morphine b. Misoprostol d. Nitroprusside c. e. Prazosin d. Dinoprostone 121. Cyclooxygenase1 and –2 are responsible for e. Epoprostenol a. The synthesis of prostaglandins from arachidonate b. The synthesis of leukotrienes from arachidonate 130. Which of the following compounds is most likely to lower circulating levels of leukotrienes? c. The conversion of ATP to cAMP a. d. The metabolic degradation of cAMP b. e. The conversion of GTP to cGMP c. 122. Following agent is generally used in allergic rhinitis d. Aspirin a. Beclomethasone e. Allopurinol b. 131. The action of aspirin that results in its greater efficacy as an c. antithrombotic (antiplatelet) drug is its ability to d. All of the above a. Inhibit lipoxygenase as well as cyclooxygenase 123. The primary objective for designing drugs that selectively b. Selectively inhibit cyclooxygenase I inhibit COX – 2 is to c. Inhibit leukocyte migration a. Decrease the risk of nephrotoxicity d. Promote uric acid excretion b. Improve anti-inflammatory effectiveness e. Acetylate cyclooxygenase c. Lower the risk of gastrointestinal toxicity 132. Which of the following drugs may be effective in the treatment d. Reduce the cost of treatment of rheumatoid arthritis of gouty arthritis by acting by two separate and distinct e. Selectively decrease thromboxane A2 without effects on mechanisms? other a. Allopurinol 124. A newborn was diagnosed as having a congenital abnormality b. Probenecid that resulted in transposition of her great arteries. While c. Colchicine preparing the infant for surgery, the medical team needed to d. Indomethacin keep the ductus arteriosus open. They did this by infusing e. Sulfinpyrazone a. Cortisol b. Indomethacin c. Ketorolac 133. Acute or chronic colchicine toxicity may be identified by c. Pramoxine 1303 which of the following signs/symptoms? d. Benzocaine a. Alopecia b. Blood dyscrasias 141. What is the most commom sign/symptom of hemorrhoids? a. Bleeding c. Severe gastrointestinal upset b. Pain d. All of the above c. Seepage e. None of the above d. Pruritus 134. Patients taking chronic doses of nonselective nonsteroidal anti-inflammatory drugs (NSAIDs) should periodically be 142. Which of the following agents is designated as a safe and screened for which of the following toxicities? effective analgesic, anesthetic and antipruritic by the Food and a. Nephrotoxicity Drug Administration? a. Witch hazel PHARMACOLOGY b. Peripheral neuropathy b. Juniper tar c. Cardiotoxicity c. Hydrocortisone d. All of the above d. Phenylephrine e. None of the above 143. A 65yearold is interested in taking ginkgo. Which of the 135. Which of the following would represent arthritis following statements is correct regarding ginkgo? therapy that is least likely to cause gastric ulceration? a. Ginkgo is contraindicated in diabetes and pregnancy a. Aspirin b. There is a drugherb interaction between ginkgo and aspirin b. Acetaminophen c. Toxic effects include hypertension and c. Piroxicam d. There is a drugherb interaction between ginkgo and d. Meclofenamate phenelzine e. Rofecoxib e. Ginkgo is contraindicated in patients with gallstone pain 136. In addition to their ability to decrease inflammatory 144. All of the following medications should not be used routinely prostaglandin synthesis, some nonsteroidal Anti- in pregnant patients during the third trimester except inflammatory drugs (NSAIDs) may owe part of their effects to their ability to a. Acetaminophen a. Inhibit leukocyte migration b. Nonsteroidal anti-inflammatory drugs b. Inhibit leukotriene synthesis c. Warfarin c. Stabilize lysosmal membranes d. Lithium d. All of the above e. Aspirin e. None of the above 145. Which of the following statements best describes the usual course of rheumatoid arthritis? 137. The termination of heparin activity by protamine sulfate is due to a. It is an acute exacerbation of joint pain treated with shortterm anti-inflammatory therapy a. A chelating action b. It is a chronic disease characterized by acute changes within b. The inhibition of gastrointestinal absorption of heparin nonsynovial joints c. The displacement of heparinplasma protein binding c. It is an acute disease that is characterized by rapid synovial d. An acidbase interaction changes due to inflammation e. The prothrombinlike activity of protamine d. It is a chronic disease characterized by acuteexacerbations followed by remissions with consequences associated with 138. In gastrointestinal tract, causes chronic inflammatory changes a. Contraction of gastrointestinal muscles e. It is a joint disease characterized by a marked loss of calcium b. Decreased muscle tone from the bones and a resultant thinning of the bones c. Decreased peristalsis 146. All of the following statements concerning an acute gouty d. All of the above arthritis attack are correct except 139. A FDA – approved ingredient for protection against painful a. The diagonosis of gout is assured by a good therapeutic sensitivity of the teeth due to cold, heat, acids, sweets or response to colchicines because no other form of arthritis contact is responds to this drug a. Dicalcium phosphate b. To be assured of the diagnosis, monosodium urate crystals must be identified in the synovial fluid of the affected joint b. Sodium lauryl sulfate c. Attacks frequently occur in the middle of the night c. 5% potassium nitrate d. An untreated attack may last up to 2 weeks d. Zinc chloride e. The first attack usually involves only one joint, most e. Calcium carbonate frequently the big toe (first metatarsophalangeal joint) 140. Which should be used to treat symptoms of 147. TNFais an example of eicosanoids pain, itching, burning, and disconfort in patients with an established lidocaine ? a. Interleukins a. Tetracaine b. Cytotoxic factors b. Dibucaine c. Interferons d. Colony stimulating factors 1304 148. Potential adverse effects associated with aspirin include all of d. Cardiovascular collapse the following except e. None of the above a. Gastrointestinal ulceration b. Renal dysfunction 157. A very common side effect of morphine is a. Allergic response c. Enhanced methotrexate toxicity b. Blood dyscrasias d. Cardiac arrhythmias c. Constipation e. Hypersensitivity asthma d. Liver damage 149. All of the following facts are true about nonsteroidal anti- e. Visceral pain inflammatory drugs (NSAIDs) except a. They are antipyretic 158. Eicosanoids are a group of _____ carbon unsaturated fatty b. There is a celling effect to their analgesia acids a. 20 c. They can cause tolerance b. 10 d. They do not cause dependence 's c. 25 e. They are antiinflammatory

MCQ d. 35 150. Which of the following narcotics has the longest duration of effect? 159. Which of the following durgs is a monamine oxidase inhibitor, a. but is used to treat hypertension? a. (Parnate) b. Controlledrelease morphine b. Reserpine c. c. Propranolol (Inderal) d. Transdermal fentanyl d. Pargyline (Eutonyl) e. Dihydromorphone e. (Tofranil) 151. CylcoocygenaseII specific inhibitors block the following a. Production of cytoprotective prostaglandins 160. Autacoids differ from hormones in that a. Autacoids are involved only in the causation of pathological b. Tumor necrosis factor a states c. Production of prostaglandins responsible for pain and b. Autacoids do not have a specific cell/ tissue of origin inflammation c. Autacoids generally act locally at the site of generation and 152. The emetic action of morphine is due to release a. Irritation of gastrointestinal tract d. Both (b) and (c) b. Stimulation of cerebral cortex 161. Which of the following eicosanoids is generated through the c. Stimulation of medullary vomiting center lipozygenase pathway ? d. Stimulation of emetic chemoreceptor trigger zone a. Prostaglandin E2 e. None of the above b. Thromboxane A2 153. Colchicine is used mainly to treat c. Prostacyclin a. Gout d. Leukotriene C4 b. Arthiritis 162. The cyclooxygenase isoenzymes COX1 and COX2 differ from c. Diabetes each other in that d. Carcinomas a. They catalyse different pathways in biosynthesis e. High blood pressure b. COX–1 is inhibited by aspirin but not COX–2 c. COX–2 is inhibited by ibuprofen but not COX–1 154. Which type of patient is most likely to hypersensitive to aspirin? d. COX–1 is constitutive while COX–2 is inducible a. Intrinsic asthamatic 163. Which of the following is an irreversible inhibitor of b. Extrinsic asthamatic cyclooxygenase ? c. Chronic bronchitic a. Aspirin d. Patient with viral injection b. e. Both (c) and (d) c. Indomethacin d. Piroxicam 155. Codeine acts as a cough sedative by a. Producing mild nausea 164. The prostanoid that consistently constricts blood vessels is b. Depressing bronchiolar secretions a. Prostaglandin E2 c. Depressing pulmonary action b. Prostaglandin F2a d. Depressing cough center c. Thromboxane A2 e. Paralyzing sensory nerves of bronchi d. Prostacyclin

156. The greatest threat from morphine poisoning is 165. The following prostanoid is a potent inducer of platelet a. Renal shutdown aggregation b. Paralysis of spinal cord a. Prostacyclin c. Respiratory depression b. Prostaglandin E2 c. Prostaglandin D2 175. The following adverse effect of corticosteroids is due to their 1305 d. Thromboxane A2 mineralocorticoid action a. Osteoporosis 166. Aspirin in low doses produces longlasting inhibition b. Rise in blood pressure a. contain low quantity of COX c. Moon face b. Platelets cannot synthesize fresh COX molecules d. Increased susceptibility to infection c. Platelets bind aspirin with high affinity d. Platelet COX is inducible 176. Which of the following bones is affected more by induced osteoporosis? 167. The early pregnancy uterus is sensitive to the following a. Femur oxytocic b. Humerus a. Oxytocin c. Radius PHARMACOLOGY b. d. Lumber vertebra c. Prostaglandin F2a d. Both (a) and (b) 177. Morphine produces analgesia by acting at a. Peripheral pain receptors 168. Cervical priming with prostaglandin results in b. A spinal site a. Facilitation of sperm movement through cervical canal c. Suspraspinal sites b. Increased cervical tone d. Both (b) and (c) c. Softening of cervix d. Increased cervical secretions 178. In man sedation caused by morphine is characterized by a. Initial excitement 169. Corticosteroids exert anti-inflammatory action by inhibiting b. Little or no motor incoordination the following enzyme c. Rise in seizure threshold a. Cycloxygenase d. All of the above b. Lipozygenase c. Phospholipase A 179. Instead of depressing, morphine stimulates d. Phosphodiesterase a. Vasomotor centre b. Edinger westphal nucleus 170. Main effect of sulphinpyrazone in hyperuricaemia is c. Temperature regulating centre a. Suppress the symptoms d. Cough centre b. Promote the elimination of urate c. prevent urate synthesis 180. In a comatose patient suspected of poisoning, which of the d. All of the above following findings would be against the drug being morphine a. 171. Which of the following glucocorticoids has significant b. Chlorgiline mineralocorticoid activity also ? c. Moclobemide a. Hydrocortisone d. Tranylcypromine b. Triamcinolone c. Dexamethasone 181. Instead of being effective in hyperuricaemia following drug is d. contradictred in the treatment of gout a. Indomethacin 172. Corticosteroid therapy is practically mandatory in the b. Diclofenac following condition. c. Piroxicam a. d. Aspirin b. Renal transplant c. Rheumatoid arthritis 182. Morphine dependence is characterized by d. Ulcerative colitis a. Marked drug seeking behavior b. Physical dependence without psychic dependence 173. For limiting cerebral edema due to brain tumour, the preferred corticosteroids are betamenthasone/dexamethasone because c. Physical as well as psychic dependence a. They do not cause Na+ and water retention d. Both (a) and (c) b. They are more potent 183. Morphine is contraindicated in head injury because c. They can be administered intravenously a. It does not relieve the pain of head injury d. They inhibit brain tumours b. It can raise intracranial tension 174. Systemic corticosteroid therapy is not used routinely and is c. It can cause constipation reserved only for severe cases of d. It is liable to cause addiction a. Exfoliative dermatitis 184. Which of the following is more potent than morphine? b. Posterior uveitis a. c. Acute rheumatic b. Fentanyl d. Hodgkin’s disease c. d. 1306 185. Which of the following opioid analgesics is similar to codeine b. It is inducible in pharmacological profile but is less constipating ? c. It generates cytoprotective prostagladins in gastric mucosa a. Methadone d. It is found only in foetal tissues b. Buprenorphine c. 195. Aspirin produces analgesia by a. Preventing sensitization of peripheral pain receptors d. Dextropropoxyphene b. Affecting gating of pain impulses at spinal level 186. Select the analgesic which acts through opioids as well as c. Raising pain threshold at subcortical level additional spinal mechanisms. d. Both (a) and (b) a. Tramadol b. Ethoheptazine 196. Aspirin reduces fever by c. Dextropropoxyphene a. Decreasing heat production in the body d. b. Enhancing cutaneous blood flow c. Inducing sweating 's 187. An opioid analgesic is preferred over aspirin like analgesic in d. Both (b) and (c) the following condition. MCQ a. Acute gout 197. In the treatment of chronic inflammatory diseases, the most b. Burn important limitation of aspirin is c. Toothache a. Acid – base and electrolytc disturbances d. Neuralgia b. Hypersensitivity and idiosyncratic reactions c. Gastric mucosal damage 188. Morphine has high affinity for the following (s). d. Salicylism a. μ (Mu) b. k (Kappa) 198. Generally the earliest manifestation of salicylism is c. d (Delta) a. Visual disturbance d. All of the above b. Excitement c. Hyperventillation 189. Which of the following is an agonistantagonist type of opioid d. Tinnitus analgesic a. Pethidine 199. Allergy is immediate hypersensitivity mediated by _____and b. Pentazocine mast cell degranulation c. Fentanyl a. IgG d. Buprenorphine b. IgE c. IgM 190. Pentazocine differs from morphine in that d. IgA a. It is inactive by the oral route e. IgD b. It does not produce physical dependence c. It has a lower ceiling of analgesic effect 200. Immediate Allergy is what type of hypersensitivity reaction d. Its action is not blocked by naloxone a. b. Type II Hypersensitivity 191. Which action of morphine is incompletely reversed by c. Type III Hypersensitivity naloxone ? d. Type IV Hypersensitivity a. Analgesia e. Type V Hypersensitivity b. Respiratory depression c. Sedation 201. Hypersensitivity refers to undesirable reactions produced by d. Miosis a. b. Respiratory system 192. Lower dose of naloxone is required to c. Immune System a. Antagonise the actions of d. Endocrine system b. Antagonise the actions of pentazocine e. Autonomic nervous system c. Precipitate withdrawal in mildly morphine dependent subjects 202. A mast cell (or mastocyte) is a resident cells of several types of d. Precipitate withdrawal in highly morphine dependent tissues and contains many granules rich in______. subjects a. Acetylcholine 193. Following mediators are involved in acute inflammation b. Nicotine except c. Epinephrine a. Histamine d. Histamine b. Leukotrienes e. Histadine c. Interferons d. Bradykinin

194. The distinctive feature of the isoenzyme cyclooxygenase2 is a. It is not inhibited by indomethacin 203. The organ which involve most frequent hypersensitivity 210. Immediate allergy reaction (type I allergic reaction) is: 1307 reaction is a. An allergic or immune response that begins within a period a. Liver lasting from a few minutes to about an hour after exposure b. Kidney to an antigen to which the individual has been sensitized c. Skin b. An allergic reaction that becomes apparent only hours after contact d. Lungs c. An allergic reaction that results from the formation of e. Stomach antigenantibody complexes between a foreign antigen and IgM or IgG immunoglobulins. 204. Penicillin Allergy is usually caused by its chemical degradation to d. An allergic reaction that is due to the presence of elevated levels of antigenantibody complexes that cause tissue a. Penicillamine damage b. Penilloic acid e. It occurs during blood transfusion reactions and in PHARMACOLOGY c. Penicillenic acid hemolytic disease of the newborn. d. Penaldic acid 211. Immunodeficiency: e. Penicilloic acid a. A localized protective reaction of tissue to irritation, injury, 205. Influenza vaccines can be contraindicated to patients who are or infection, characterized by pain, redness, swelling, and allergic to the preservatives of the vaccine, e.g. _____ sometimes a loss of function a. Neomycin b. A disorder or deficiency of the normal immune response b. Streptomycin c. A disease resulting from an immune reaction produced by c. Gentamycin an individual’s white blood cells or antibodies acting on the body’s own tissues or extracellular proteins d. Doxycycline d. A disease caused by immune system when the drug passes e. Clavulanic acid 1st pass effect and damage the liver. 206. Reduction in fever within ___ h withdrawal of drug strongly e. It is an immunity disorder which is genetically transferred. suggests that suspected drug causing allergy. 212. Delayed allergy reaction (type IV allergic reaction) is: a. 38 h a. An An allergic or immune response that begins within a b. 24h period lasting from a few minutes to about an hour after c. 48h exposure to an antigen to which the individual has been d. 16 h sensitized e. 20 h b. An allergic reaction that becomes apparent only hours after contact 207. If fever is accompanied by ______, drug toxicity is more c. An allergic reaction that results from the formation of likely than allergy and is much more serious. antigenantibody complexes between a foreign antigen and a. Granulocytopenia IgM b. Thrombocytopenia d. allergic reaction that is due to the presence of elevated levels of antigenantibody complexes that cause tissue damage c. Histamine e. An allergic disorder which is transferred genetically. d. Leukopenia e. Hypotension 213. Which one of the following is a false statement about atopic eczema? 208. A mother comes to the pharmacy with her 3yearold son who a. It commonly begins by drug reaction. has a cough. Which of the following list of symptoms is most likely to indicate an allergy? b. Superadded herpes simplex infection is a serious complication. a. fever c. The serum IgE level is normally raised. b. chesty cough d. The skin lesions are typically itchy. c. rhinorrhoea e. Treatment with systemic steroids is often necessary. d. headache e. malaise 214. Which one of the following statements is false ? Allergic asthma is characterized by: 209. The primary reason for a physician to prescribe human insulin a. Response to cyclosporin therapy in severe disease. is that: b. Is characterised by reversible airways obstruction. a. It has a faster onset of action than other insulins c. T2 cells are found in bronchoalveolar lavage fluid. b. It has a shorter duration of action than other insulins d. Affects 5% of the population. c. It can be given to patients who have an allergy to animal insulins e. Is diagnosed routinely by use of ELISA d. It is more effective in preventing the complications of diabetes than animal insulins e. It is more sterile than other insolines. 1308 Pharmacology - Answers

1. d 38. b 76. a 112. b 149. c

2. c 39. b 77. b 113. b 150. d

3. c 40. a 78. d 114. b 151. c

4. b 41. a 79. a 115. d 152. d

5. a 42. a 80. a 116. b 153. a

6. d 43. d 81. c 117. d 154. a

7. c 44. a 82. c 118. c 155. d 's

MCQ 8. b 45. a 83. d 119. c 156. c

9. c 46. c 84. d 120. b 157. c

10. e 47. e 85. d 121. a 158. a

11. d 48. b 86. d 122. d 159. d

12. a 49. e 87. c 123. c 160. d

13. b 50. b 88. a 124. d 161. d

14. b 51. a 89. d 125. a 162. d

15. c 52. a 89. d 126. c 163. a

16. a 53. a 90. d 127. a 164. c

17. b 54. b 91. c 128. d 165. d

18. b 55. c 92. c 129. b 166. b

19. b 57. c 93. c 130. a 167. c

20. e 58. d 94. b 131. e 168. c

21. c 59. b 95. c 132. d 169. c

22. c 60. d 96. c 133. d 170. b

23. b 61. b 97. c 134. a 171. a

24. b 62. d 98. c 135. e 172. b

25. a 63. b 99. d 136. d 173. a

26. b 64. b 100. a 137. d 174. c

27. d 65. b 101. b 138. a 175. b

28. a 66. b 102. d 139. c 176. d

29. e 67. b 103. b 140. c 177. b

30. c 68. c 104. c 141. a 178. b

31. d 69. b 105. c 142. b 179. b

32. e 70. d 106. d 143. b 180. a

33. a 71. c 107. e 144. a 181. d

34. b 72. a 108. e 145. d 182. d

35. d 73. a 109. b 146. a 183. b

36. c 74. d 110. d 147. b 184. b

37. e 75. c 111. d 148. e 185. d 186. a 192. d 198. d 204. e 210. a 1309

187. b 193. c 199. b 205. a 211. b

188. a 194. b 200. a 206. c 212. b

189. b 195. d 201. c 207. a 213. e

190. c 196. d 202. d 208. c 214. e

191. c 197. c 203. c 209. c PHARMACOLOGY