Question

Administering atropine (an anticholinergic) to a patient before surgery : A) Decreases heart rate

B) Increases salivation
C) Constricts pupils
D) Relaxes airways

Answer 1

Administering atropine before surgery constricts pupils.

Step-by-step explanation:

Administering atropine (an anticholinergic) before surgery constricts pupils. Atropine blocks the muscarinic acetylcholine receptors and prevents acetylcholine from binding to them, resulting in pupils that become larger (dilated) since the muscles that contract the pupils aren't being stimulated. However, it's important to note that atropine can have other effects, such as increasing heart rate, relaxing airways, and decreasing salivation.