Dosage and Calculations: Practice Problems Exam 2025/2026 Questions With Completed & Verified Solutions.

Dosage and Calculations: Practice
Problems

A child weighs 11.2 kg and has an order for Acyclovir 120 mg IV every 8 hours. The safe does
range (SDR) of Acyclovir is 25-50 mg/kg/day.

What is the divided dose range in mg for this child?

Round to nearest tenth - ANS-Weighs = 11.2 kg
120 mg = 8 hours
SDR = 280-560 mg/day
1 day = 24 hours

Mg/dose = 280mg/day X day/24 hr X
8 hrs/dose = 93.3 mg/dose

Mg/dose = 560 mg/day X day/24 hrs X
8 hers/dose = 186.7 mg/dose
\A child weighs 11.2 kg and has an order for Acyclovir 120 mg IV every 8 hours. The safe does
range (SDR) of Acyclovir is 25-50 mg/kg/day.

What is the SDR in mg for this child in 24 hours?

Round to nearest tenth - ANS-Weighs = 11.2 kg
120 mg = 8 hours
SDR = 25-50 mg/kg/day

Mg/day = 25mg/1 kg/day X 11.2 kg/1 =
280 mg/day

Mg/day = 50mg/1 kg/day X 11.2kg/1 =
560 mg/day

SDR = 280-560 mg/day
\Doctor's order: Augmenting oral suspension 280 mg P.O. three times a day. Available as
125mg/5mL. How many mLs will the nurse administer for one dose?

Round to nearest tenth - ANS-Dose = 280 mg
125 mg = 5 mL

mL/dose = 5 mL/125 mg X 280 mg/dose =