Unconsciousness Coma

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Unconsciousness Coma Z. Rozkydal Intracranial causes Vessels: head injury, bleeding haematoma, anomalies, ischemia Infection – meningitis, encefalitis, abscesus Tumors Epilepsy Extracranial causes Poisoning (CO, alcohol, drugs) Metabolic diseases (DM, hypothyreosis) Systemis failure- liver, kidney Stop of breathing and circulation - in 30 seconds Level of consciousness 1. Somnolence drowsiness 2. Sopor lower level of consciousness reaction to pain 3. Coma deep unconsciousness je neprobuditelný Level of consciousness A Alert, respond to questions eyes are open V Voice, respond to voice, obey commands P Pain, respond to pain U Unresponsive to any stimulus First aid Seek the cause Monitor vital signs Opening the airways- tilt his head back lift the chin Checking breathing Recovery position, injury- the same position AED CPR Avoid aspiration, nothing orally Transport Recovery position Faintness- syncope Short loss of consciousness Causes: bradycardia, arythmia postural hypotensis vasovagal faintness First aid Horizontal position Raising of legs Fresh air Fluids Extracranial unconsciousness Diabetic coma DM- insufficient production of insulin Hyperglycaemia, osmotic diuresis Loss of fluids Metabolic acidosis, aceton Loss of potassium and natrium Brain is depedent on plasmatic glucose Utilisation of glucose in brain is not controlled by insulin Signs Polyuria, polydypsia Dry, warm skin, dehydration Rapid pulse and breathing Excessive thirst Deep breath Fruity sweet breath- aceton in the breath Nausea and vomiting Unconsciousness Mortality 50 % Hypoglycaemia – coma Causes: insulin- sugar balance is incorrect high doses of insulin, alcohol Signs: Weakness, faintness, confusion Sweating with cold clammy skin Rapid pulse, muscle tremor Deteriotating level of response Feels hungry First aid in both- sugar, glucose fluids Hepatal coma Renal coma (uraemia) Hyperthyreosis Hypothyreosis Death of brain History of brain lesion Areflexia, apnoe from the brain stem No reaction of pupils No reaction to pain No breathing for 10 minutes after stopping of ventilation with oxygen EEG – ½ hour isoelectric line Brain angiography – no vascularisation above the base Signs of death Patches (6-12 hours) Cold body (1˚C / hour) Stiffness (after 6-12 hours) Decomposed body (after 2 days) .

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