When assessing a patient taking pseudoephedrine for allergic rhinitis, what adverse effect should be closely monitored?

When monitoring a patient taking pseudoephedrine for allergic rhinitis, it is important to closely observe for signs of hypertension. Pseudoephedrine is a decongestant that acts by constricting blood vessels in the nasal passages, which can lead to increased blood pressure. This medication stimulates alpha-adrenergic receptors, causing vasoconstriction, and it can also affect the cardiovascular system by increasing heart rate and blood pressure.

Patients with a history of hypertension or cardiovascular issues may be particularly vulnerable to these effects, making careful BP monitoring essential during treatment. Additionally, other considerations, like potential interactions with other medications that can also elevate blood pressure, further underscore the importance of vigilance regarding this adverse effect.

In contrast, while hypotension, bradycardia, and dehydration can occur with various treatments and health conditions, they are not typically associated with pseudoephedrine. For instance, bradycardia occurs with reduced heart rate, and dehydration is more related to fluid loss rather than being directly linked to pseudoephedrine use.