BODY SURFACE AREA (BSA) METHOD
(USING SQUARE METERS)
mg/m2 x m2
Give 2 mg/m2 of medication “X” to a child with body surface area (BSA) of 0.79 m2.
Answer: 2mg/m2 x 0.79 m2 = 1.58 mg = 1.6 mg
A child is receiving KCl 14.4 mEq/day. The recommended dose is 40 mEq/m2/day. The child’s height is 64 cm, weight is 7.2 kg, and BSA is 0.36 m2. Is the dose ordered safe?
Answer: 40 mEq/m2 x 0.36 m2 = 14.4 mEq