Oliguria

You receive a call from the PACU about a 55 yo patient s/p Whipple procedure.  Seems that his urine output over the past 2 hours is zero, and they're just now getting around to calling you.

• What is your differential diagnosis?
• How are you going to figure out what's wrong?
• How are you going to treat him for each possible diagnosis?
  

References: (note, all residents should have access to Anesthesiology articles online if they receive the journal.  Many other journals are available with a USF account through MD Consult...just access it from the departmental home page)

1. Wilson W, Aronson S.  Oliguria, a sign of  renal success or impending renal failure?  Anesthesiology Clinics of North America 2001;19