A drug causes muscarinic-receptor blockade. A nurse will assess the patient for:

A) dry mouth.
B) gynecomastia.
C) pseudoparkinsonism.
D) orthostatic hypotension.

Muscarinic-receptor blockade includes atropine-like side effects such as dry mouth, blurred vision, and constipation. Gynecomastia is associated with decreased prolactin levels. Movement defects are associated with dopamine blockade. Orthostatic hypotension is associated with alpha₁-receptor antagonism.