Oliguria is a common occurrence in the ICU setting. In patients with p
reserved renal function, fluid challenges or low doses of diuretics ar
e generally successful. In patients with oliguric renal failure, it is
still essential to ensure adequate intravascular fluid patients. Loop
diuretics remain the mainstay of treatment. When diuretic resistance
is encountered, physicians should consider further optimization of hem
odynamics, alternative loop diuretics, and combined drug therapy. In s
ome cases, continuous renal replacement therapy can be very effective.
Yet, while these interventions can help reduce the morbidity of sever
e volume overload, they have not been shown to improve mortality rates
.