• Serum glucose
Prothrombin time (PT) and bilirubin o Eiectrolytes and creatinine
• Lactate
Renal failure has been shown to coexist with or, rarely, be independent of liver toxicity in overdose. One study indicated that this is morę likely to occur in alcoholic persons. Renal failure usually is not observed acutely but rather within 2-3 days of overdose.