A patient has a known case of congestive heart failure. Upon assessment, the patient presents with oliguria, asterixis, confustion, and orthostatic blood pressure. The diagnosis was azotemia. What type of azotemia is the patient under?

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Azotemia is a condition where there is increased level of nitrogen-type waste in the blood. Pre-renal azotemia refers to a type of kidney failure caused by a reduction of blood supply to the kidneys. This includes burn, congestive heart failure, dehydration, or massive bleeding. Pre-renal azotemia is characterized by confusion, drowsiness, oliguria, fatigue, pallor, tachycardia, edema, thirst, and dry mouth.

A Patient Has a Known Case of Congestive Heart Failure