What side effect should a nurse monitor in clients taking tricyclic antidepressants related to urinary function?

Tricyclic antidepressants (TCAs) are known to have anticholinergic properties, which can significantly impact urinary function. One notable side effect of this class of medication is urinary retention. This occurs because TCAs can inhibit the action of acetylcholine, a neurotransmitter that plays a key role in bladder contraction and urination. As a result, patients may find it difficult to empty their bladders completely, leading to discomfort and potential complications such as urinary tract infections.

Monitoring for urinary retention is important for nurses because it can lead to serious complications if not addressed. While the other options may relate to various urinary or bladder issues, they do not accurately reflect the specific concern associated with tricyclic antidepressants. Increased urination, frequent urges, and loss of bladder control are not typical side effects of TCAs and may suggest other underlying issues or different medication effects. Therefore, vigilance in monitoring for urinary retention is essential when caring for clients taking these medications.