A patient with acute anaphylactic shock presents with profound upper airway stridor. What is the immediate priority intervention?
Answer and explanation
Correct answer: A. Intramuscular epinephrine in the anterolateral thigh
Answer: Intramuscular epinephrine in the anterolateral thigh.
Why not the others: Epinephrine stimulates alpha-1 and beta-2 receptors, reversing mucosal edema and bronchospasm rapidly; H2 blockers like ranitidine are secondary adjuncts; Nebulized saline does not reverse bronchoconstriction; Oral medications are contraindicated in severe stridor and shock.
Why not the others: Epinephrine stimulates alpha-1 and beta-2 receptors, reversing mucosal edema and bronchospasm rapidly; H2 blockers like ranitidine are secondary adjuncts; Nebulized saline does not reverse bronchoconstriction; Oral medications are contraindicated in severe stridor and shock.
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