A patient with prolonged vomiting has a potassium level of 7.0 mmol/L and peaked T waves on the ECG. Which emergency medicine helps protect the cardiac membrane while other treatment lowers potassium?
Correct answer: A. Calcium gluconate
- A. Calcium gluconate
- B. Sodium bicarbonate
- C. Furosemide
- D. Oral potassium chloride
Explanation
Intravenous calcium gluconate stabilizes the myocardium during severe hyperkalaemia with ECG changes, but it does not remove potassium from the body. Sodium bicarbonate may shift potassium in selected cases, while furosemide and oral potassium chloride are not immediate cardiac membrane stabilizers.
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About Emergency Drugs and Antidotes
Emergency pharmacology covers drugs used in cardiac arrest, shock, severe allergy, acute asthma, seizures, poisoning and hypoglycaemia, including adrenaline, atropine, naloxone, flumazenil and selected antidotes. The focus is on indications, routes, rapid adverse effects, dose safety and matching a toxic substance with its specific reversal agent.
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