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12 Cards in this Set
- Front
- Back
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Hypocalcaemia |
Prolonged QT interval |
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Causes of prolonged QT interval |
Hypokalaemia, hypocalcaemia hypomagnesemia Type 1A Antiarrhythmic drugs (quinidine procainamide) Severe CNS abnormalities (i.e subarachnoid haemorrhage) |
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QT interval is associated with |
Torsade de pointes ( Polymorphic ventricular tachycardia) |
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High altitude causes hyperventilation and respiratory alkalosis which leads to |
Hypocalcemia due to enhanced calcium-albumin binding An elevation in extracellular PH increases the binding of calcium to album and thereby lowering the plasma ionized calcium concentration |
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Succinylcholine associated with |
Life-threatening malignant hyperthermia and hyperkalaemia in predispose patients |
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Succinylcholine is |
A Muscle relaxant (a nicotine acetylcholine receptor agonist) popular for use in endotracheal intubation in emergency departments because if it’s fast effects and short term action |
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Dantrolene |
Ryanodine receptor antagonist Inhibits abnormal calcium release from sarcoplasmic reticulum Lowers elevated temperature in malignant hyperthermia, thyroid storm, neuroleptic malignant syndrome and sepsis |
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Hypothermia ECG changes |
Osborn J-wave |
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Hypothermia |
Cutaneous microvasculature erythrocyte sludging |
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Rewarming in hypothermia |
Should be at rate > 2 Celsius/ hr to reduce mortality |
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Complication of rapid rewarming is |
Hypotension |
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Drug that increases risk of hypothermia |
Clonidine |
