Salbutamol Beta-2 — FRCA Primary MCQ

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EasyPharmacology - AutonomicSalbutamol Beta-2FRCA Primary

Salbutamol causes bronchodilation via which receptor?

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Correct answer: C — Beta-2

Beta-2 receptors in bronchial smooth muscle mediate bronchodilation. Beta-2 stimulation also causes peripheral vasodilation / tremor / and hypokalaemia through cellular K+ uptake via Na+/K+ ATPase stimulation.

Reference: Peck Hill Williams 2014 Pharmacology for Anaesthesia and Intensive Care