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MOH Pocket Manual in Emergency Medicine

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MOH Pocket Manual in Emergency Medicine MOH Pocket Manual in Emergency MOH Pocket Manual in Emergency COntents cardiac emergency 3 MOH Pocket Manual in Emergency Contents Chapter 1: Cardiac emergency: • Acute ST Elevation Myocardial Infarction1 . • Non ST Elevation Myocardial Infarction. Atrial fibrillation. • Bradydysrhythmias. • Hypertension. • Acute Aortic Syndromes. • Deep Venous Thrombosis. Chapter 2: Pulmonary emergency: • Acute bronchial Asthma. Chapter 3 : Neurological emergency: • Headache. • Adult Acute Bacterial Meningitis. Chapter 4 :Toxicology: • Acetaminophen (Paracetamol, APAP) Overdose. • Carbon Monoxide Poisoning. Chapter 5 : Hematological emergency: • Sickle cell disease in emergency department. • Anticoagulation Emergencies. Chapter 6 : Endocrinology and electrolyte emergency: • Hypokalemic and Hyperkalemia Emergencies. • Diabetic emergency. 4 content MOH Pocket Manual in Emergency • Thyroid Storm and Myxedema Coma Chapter 7 : Urological emergency: • Rhabdomyolysis. • Acute Urinary Retention. Chapter 8 : Trauma and environmental: • Severe Traumatic Brain Injury. • Electrical Injuries. • Heat injury. Chapter 9 : Medications List content 5 MOH Pocket Manual in Emergency Chapter 6 cardiac emergency MOH Pocket Manual in Emergency Chapter 1 CRADIAC EMERGENCY cardiac emergency 7 MOH Pocket Manual in Emergency Acute ST Elevation and Non ST Elevation Myocardial Infarction Overview Acute coronary syndrome involves: 1. ST elevation acute myocardial infarction 2. Non–ST-segment elevation acute myocardial infarction 3. Unstable angina (UA). Acute ST elevation myocardial infarction typically occurs when a clot leads to complete occlusion of a coronary artery with trans mural , or full thickness myocardial infarction . The ECG will show ST segment elevation in the involved area of the heart. Non–ST-segment elevation acute coronary syndromes (NSTE- ACS) refers to a disease process characterized by reduced coronary blood flow resulting in coronary ischemia without ST- segment elevations on an electrocardiogram (ECG). NSTE-ACS include both non–ST-segment elevation acute myo- cardial infarction (MI), as defined by positive biomarkers for MI, and unstable angina (UA), as defined by negative biomarkers. 8 cardiac emergency MOH Pocket Manual in Emergency Clinical Presentation o History • Chest pain, when it started, what it feels like (stabbing, crushing, pressure, aching), and if it radiates to other parts of the body. • Jaw/shoulder/ neck/arm pain. • Dizziness, nausea. • Shortness of breath. o Physical Examination • Hemodynamic stability, signs of heart fail- ure/left ventricular dysfunction. • Exclusion of noncardiac and nonischemic cardiac causes requires a thorough examination of the pa- tient’s chest wall―including inspection and pal- pation―as well as careful examination of cardiac and pulmonary functions. cardiac emergency 9 MOH Pocket Manual in Emergency Differential diagnosis o Heart Acute coronary syndrome Pericarditis Myocarditis Endocarditis Valvular disease o Lungs Pulmonary embolus Pneumothorax Pneumonia Empyema Hemothorax COPD o Esophagus Esophagitis GERD Spasm Foreign body Rupture (Boerhaave’s) Esophegeal Tear o Work up • CBC. • Electrolytes. • Coagulation studies. • Cardiac enzymes. • ECG. • Cardiac biomarkers. 10 cardiac emergency MOH Pocket Manual in Emergency Management o Prehospital Care: • Three goals: (1) Delivering patients to an appropriate health care facility as quickly as possible. (2) Preventing sudden death and controlling arrhythmias by using acute cardiac life support (ACLS) protocol when necessary. (3) Initiating or continuing management of patients during inter- facility transport. • Checklist to get from the EMS team includes the fol- lowing information: 1. The person who initiated EMS involvement (patient, family, bystander, transferring hospital) and why. 2. Complaints at the scene. 3. Initial vital signs and physical examination results, as well as notable changes. 4. Therapies given prior to arrival and the patient’s response. 5. ECGs done at an outside hospital or en route, noting the context in which notable ECGs were printed. cardiac emergency 11 MOH Pocket Manual in Emergency 6. The patient’s code status (if known). 7. Family contacts for supplemental information and family mem- bers who may be on their way to the ED, as they may be help- ful in completing or verifying the history. In hospital care for STEMI: • Assess and stabilize airway, breathing, and circulation. • Do ECG. • Provide oxygen; attach cardiac and oxygen saturation monitors; establish IV access. • Treat arrhythmia rapidly according to ACLS protocols. • Give aspirin 162 to 325 mg (non-enteric coated), to be chewed and swallowed (allergy to aspirin is an abso- lute contraindication) . • Give three sublingual nitroglycerin tablets (0.4 mg) one at a time, spaced five minutes apart if patient has per- sistent chest discomfort, hypertension, or signs of heart failure and there is no sign of hemodynamic compro- mise and no use of phosphodiesterase inhibitors, infe- rior MI with right ventricular extension. • Give morphine sulfate (2 to 4 mg slow IV push every 5 to 15 minutes) for persistent discomfort or anxiety. 12 cardiac emergency MOH Pocket Manual in Emergency Select reperfusion strategy: • Primary percutaneous coronary intervention (PCI) strongly preferred, especially for patients with cardio- genic shock, heart failure, late presentation, or contrain- dications to fibrinolysis. • Treat with fibrinolysis if PCI unavailable within 90-120 minutes, symptoms <12 hours, and no contraindications • Give antiplatelet therapy (in addition to aspirin) to all patients: Patients treated with fibrinolytic therapy: Give clopidogrel loading dose 300 mg if age less than 75 years; if age 75 years or older, give loading dose of 75 mg. • Give anticoagulant therapy to all patients: • Unfractionated heparin: -For patients undergoing primary PCI, we suggest an initial in- travenous (IV) bolus of 50 to 70 units/kg up to a maximum of 5000 units. -For patients treated with fibrinolysis, we suggest an IV bolus of 60 to 100 units/kg up to a maximum of 4000 units and for pa- tients treated with medical therapy (no reperfusion) an IV bolus cardiac emergency 13 MOH Pocket Manual in Emergency of 50 to 70 units/kg up to a maximum of 5000 units. -Both should be followed by an IV drip of 12 units/kg per hour (goal aPTT time of 1.5 to 2 times control or approximately 50 to 75 seconds). Disposition • Admit to ICU In hospital care for NSTEMI: o Management • High-risk patient: :”Early ”invasive- 1. Discuss with cardiology. 2. Clopidogrel 300 mg or GPIIb/IIIa inhibitor. 3. Prompt PCI. • Not high-risk patient: -Early ”conservative”: Clopidogrel 300 mg. 14 cardiac emergency MOH Pocket Manual in Emergency Disposition • Admit to ICU. o Alert • Sudden onset of severe pain. • Occurring during exercise. • Lasting longer than 15 minutes. • Associated with shortness of breath. • Nausea/vomiting and sweating. • Radiation to left arm or jaw. • In case of inferior myocardial infarction , you must do Right side and Posterior ECGs to rule out Right ven- tricular or Posterior MI . cardiac emergency 15 MOH Pocket Manual in Emergency Atrial Fibrillation: Management Strategies Overview o Cardiac causes: • Mitral valve disease. • Myocardial disease. • Conduction system disorders. • Wolff-Parkinson-White syndrome. • Pericardial disease. Conditions associated with AF include: • Thyrotoxicosis. • Hypothermia. • Alcohol use. • Severe infection. • Hypoxia. • Pulmonary emboli. • Pneumonia. • Kidney disease. • Obesity. • Diabetes mellitus. • Digoxin toxicity. • Electrolyte abnormalities. • Intrathoracic surgery, such as cardiac or pulmonary surgery, or invasive cardiac studies. 16 cardiac emergency MOH Pocket Manual in Emergency Atrial Fibrillation is categorized as follows: • First detected episode. • Recurrent (after two or more episodes). • Paroxysmal (if recurrent AF terminates spontaneously). • Persistent (if sustained beyond 7 days). Clinical Presentation o History • Anxiety, palpitations, shortness of breath, dizziness, chest pain, or generalized fatigue. • Medications and alcohol and drug use. Physical Examination • Vital signs. • Oxygen saturation. • Evidence of thyroid disease (eg, exophthal- mos and enlarged thyroid). • Evidence of deep vein thrombosis/pulmonary embolus (e.g., unilateral lower extremity swelling or tenderness). • The cardiac evaluation: rate, rhythm, and the presence of heart murmurs. cardiac emergency 17 MOH Pocket Manual in Emergency Differential diagnosis Atrial Ventricular Rhythm Frequency, Frequency, P-wave beats/min beats/min Sinus Precedes every tachycar- 100-180 100-180 QRS complex dia Atrial irregu- ,60-190 400-600 Absent fibrillation larly irregular regu- ,75-150 Atrial lar, sometimes 250-350 Sawtooth flutter alternating block Atrioven- tricular nodal In QRS complex 180-250 180-250 reentrant ((R tachycar- dia Precedes QRS; Atrial P-wave differs tachycar- 120-250 75-250 from sinus P- dia wave Multifo- or more dif- 3 cal atrial ferent P-wave 100 < 100 < tachycar- morphologies at dia different rates 18 cardiac emergency MOH Pocket Manual in Emergency Atrial fibrilla- tion with with ,180-300 Wolff- wide, bizarre 400-600 Absent Parkinson- QRS com- White plexes syndrome Work up • Electrocardiogram. • Complete blood cell count. • Metabolic panel. • Hepatic function panel. • Coagulation studies. • A thyroid panel. • Chest radiography. cardiac emergency 19 MOH Pocket Manual in Emergency Management o Prehospital Care: • Cardioversion considered if the patient exhibits signs of hemodynamic
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