Math and Dosage Calculations for Health Care 3rd Edition by James Whaley, Kathryn Booth, Booth Kathryn

Exercise 127

In Exercises 14, determine if the dosage ordered is safe.
The patient: 76-year-old female, 5 ft 2 in. tall, 126 lb, and CL CR of 50 mL/min. Patient is in ideal weight range.
Ordered: Tazidime 1 g IV q12h
According to the package insert, for creatinine clearance levels of 31 to 50 mL/min, the recommended dosage is 1 g q12h; for levels of 16 to 30 mL/min, the dosage is 1 g q24h; for levels of 6 to 15 mL/min, the dosage is 500 mg q24h; and for levels 5 mL/min, the dosage is 500 mg q48h.