Med Math: Formulas Question #14

Question

Solumedrol 4 mg/kg is ordered for a child weighing 64.8 lb. Solumedrol is available as 500 mg/4mL. How many mL will the nurse administer?

Answers

1. 0.942 mL
   • Rationale:
2. 49.2 mL
   • Rationale:
3. 9.42 mL
   • Rationale:
4. 2.94 mL
   • Rationale:

Overview

Explanation

Determine all givens = wt convert to kg = 29.45 kg; dose ordered
4 mg/kg; available on hand = 500 mg/4 mL
Wt kg x Dose ordered = 29.45 kg x 4 mg/kg = 117.8 mg
Plug into formula: 117.8 mg / 500 mg x 4 mL = 0.942 mL

Learning Outcomes

Test Taking Tip

Video Rationale