Muscle Relaxants · NEET PG Preparation Anaesthesia

Which of the following adverse effects is classically associated with the administration of succinylcholine in patients with severe burns, massive tr…

Practice question from Muscle Relaxants (NEET PG Preparation Anaesthesia), with the correct answer and a step-by-step solution.

medium · MCQ · Q-62E965

Which of the following adverse effects is classically associated with the administration of succinylcholine in patients with severe burns, massive trauma, or upper motor neuron lesions?

  1. A.Severe hypokalemia
  2. B.Hyperkalemic cardiac arrestCorrect answer
  3. C.Metabolic alkalosis
  4. D.Prolonged apnea due to plasma cholinesterase deficiency

Solution

Succinylcholine causes upregulation of extrajunctional acetylcholine receptors. When administered to patients with burns, trauma, or denervation injuries, potassium efflux can be massive, leading to severe hyperkalemia and potential cardiac arrest.

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