Which medication requires the nurse to monitor the client's blood pressure due to potential hypotensive effects?

Methyldopa is a centrally acting alpha-2 adrenergic agonist that is primarily used for the treatment of hypertension. It works by stimulating alpha-2 receptors in the brain, which leads to decreased sympathetic outflow and, consequently, reduced blood pressure. Due to its mechanism of action, there is a significant potential for the development of hypotension, especially when initiating therapy or adjusting dosages.

Therefore, monitoring blood pressure is crucial to ensure that it does not drop to unsafe levels, which can lead to symptoms such as dizziness, fainting, or even more severe complications. Regular assessment of blood pressure helps in adjusting the dose appropriately to manage hypertension effectively while minimizing the risk of hypotensive episodes.

While the other medications listed can influence blood pressure as well, their monitoring protocols may differ. Hydrochlorothiazide can cause hypotension, but it typically has less immediate and severe hypotensive effects compared to methyldopa, being a diuretic. Metoprolol, a beta-blocker, does lower heart rate and can affect blood pressure but is not primarily monitored solely for hypotensive episodes as extensively as methyldopa. Enalapril, an ACE inhibitor, can potentially cause hypotension as well, but the