Which medication is given to a dialysis patient to support blood pressure prior to treatment?

Midodrine is the appropriate medication given to support blood pressure in dialysis patients prior to treatment. It acts as a vasopressor, meaning it helps raise blood pressure by causing blood vessels to constrict. This is particularly important for dialysis patients who may experience hypotension (low blood pressure) as a result of the treatment process, which can lead to inadequate blood flow to vital organs and potentially serious complications.

Midodrine is often utilized in circumstances where other standard approaches to managing blood pressure are insufficient. This "pre-treatment" support is crucial for ensuring patient stability and safety during dialysis sessions.

In contrast, other medications listed serve different purposes. For instance, Losartan and Amlodipine are typically used to manage hypertension, not support blood pressure during a procedure. Furosemide is a diuretic that helps remove excess fluid and does not function to raise blood pressure; it can actually contribute to lower blood pressure if excessive diuresis occurs. Therefore, Midodrine is specifically positioned as a supportive measure for these patients in the context of dialysis treatment.