What complication may arise from excessive fluid removal during dialysis along with the patient's use of antihypertensive medication?

When excessive fluid is removed during dialysis, particularly for patients who are on antihypertensive medication, a common complication that may arise is hypotension. This occurs because the rapid removal of fluid decreases the overall blood volume, which can lead to a significant drop in blood pressure, especially when combined with the effects of medications that lower blood pressure.

Antihypertensive medications work by dilating blood vessels or reducing the volume of fluid in the body, which can further exacerbate the decrease in blood pressure when fluid removal is excessive. Patients may experience symptoms such as dizziness, lightheadedness, or fainting as a result of hypotension during or after a dialysis session. Monitoring blood pressure and adjusting fluid removal rates, along with careful management of antihypertensive medications, are essential in preventing this potentially dangerous complication.