A patient with acute renal failure (ARF) is prescribed furosemide (Lasix). The n

Lasix is used to mobilize fluid in the body, so I would go with #1- Reduce edema.

1 -- If restoration of renal blood flow does not improve urinary output, a potent loop diuretic such as furosemide or an osmotic diuretic such as mannitol (Osmitrol) may be given with intravenous fluids. If nephrotoxins are present, the combination of fluids and diuretic may, in effect, “wash out” the nephrons and reduce toxin concentration. Second, establishing urine output may prevent oliguria, and reduce the degree of azotemia and fluid and electrolyte imbalances. Furosemide may also be used to manage salt and water retention associated with ARF as it helps to eliminate sodium. It does not preserve protein. Medications are not typically prescribed by their “gentleness.” Each patient’s response to a medication can be unique.