80) ANSWER

A)  Hourly urine output

RATIONALE

Clients who have had an episode of decreased glomerular perfusion are at risk for pre-renal failure. This is caused by any abnormal decline in kidney perfusion that reduces glomerular perfusion. Pre-renal failure occurs when the effective arterial blood volume falls. Examples of this phenomena include a drop in circulating blood volume as in a cardiac arrest state or in low cardiac perfusion states such as congestive heart failure associated with a cardiomyopathy. Close observation of hourly urinary output is necessary for early detection of this condition.