Noradrenaline Alpha-1 Alpha-2 — FRCA Primary MCQ
Instant feedback + full explanation. One question, done properly.
Educational content. Not a substitute for clinical judgement or local policy.
Reveal the answer and explanation
Correct answer: D — Alpha-1 and alpha-2 with some beta-1 activity
Noradrenaline is a potent alpha-1/alpha-2 agonist with moderate beta-1 but minimal beta-2 activity. This produces vasoconstriction (alpha-1) / increased contractility (beta-1) / but no significant bronchodilation. Reflex bradycardia may occur from baroreceptor activation.
Reference: Peck Hill Williams 2014 Pharmacology for Anaesthesia and Intensive Care