mdcat logical reasoning MCQ #270

A patient with a history of asthma is prescribed a medication that prevents bronchoconstriction. Which receptor subtype is most likely blocked?

mdcat logical reasoning MCQ #270

  1. Question 1

    Q1. A patient with a history of asthma is prescribed a medication that prevents bronchoconstriction. Which receptor subtype is most likely blocked?

    • A) α2-adrenergic receptors in the adrenal gland
    • B) β2-adrenergic receptors in the lungs
    • C) M3 muscarinic receptors in the pancreas
    • D) M2 muscarinic receptors in the heart

    Answer: β2-adrenergic receptors in the lungs

    Explanation: Blocking β2-adrenergic receptors in the lungs prevents bronchoconstriction and improves airflow. USAT, HAT and MDCAT analytical sections repeat this pattern.