Risk factors for a poor outcome:
(1) thrombocytopenia (platelet count < 120,000 per µL)
(2) acute renal failure
(3) disturbed consciousness
(4) shock
Basic management:
(1) control of blood glucose (important in diabetics)
(2) intravenous antibiotics
(3) management of fluid and electrolytes
(4) percutaneous catheter drainage (important with urinary tract obstruction)
(5) if immunosuppressive therapy is a contributing cause, reverse if possible
Patients who may require intensive care and possibly nephrectomy:
(1) Class 4
(2) Class 3 with >= 2 risk factors for a poor outcome
(3) Class 3 with < 2 risk factors who fail basic management
(4) Class 1 or 2 who fail basic management
