11. Serum creatinine </= 1.6 mg/dL and creatinine clearance >/= 30 ml/min. Creatinine clearance will be calculated using the Cockcroft-Gault equation: Use actual body weight if it is less than or equal to ideal body weight. Use ideal body weight if patient greater than ideal body weight, but is less than or equal to 50% over ideal body weight. Use adjusted body weight if patient is greater than 50% over ideal body weight.