Once postrenal AKI is suspected, the patient should undergo further evaluation with radiographic imaging to further characterize the obstruction.

MANAGEMENT

The specific management of these various etiologies is discussed later in this book. Irrespective of the cause, however, clinicians should be cognizant of the common sequelae of severely impaired renal function, such as fluid retention (with subsequent hypertension and edema), hyperkalemia, and metabolic acidosis. Any of these conditions, if not correctable with medications, may require renal replacement therapy.