drug dose calculations Exam Questions and
Answers with Verified Solutions | Latest
Updated 2026
Prepared-strength calculations Calculations involving mg/mL and tablets.
Percentage-strength solutions Solutions defined by the amount of drug
per 100
mL.
Steps to solve prepared-strength Convert units, set up proportion, solve for
calculations X.
Core formula for dosing Dose on hand / Volume = Desired dose /
X.
Example of prepared-strength 120 mg in 30 mL → give 15 mg; X = 3.75
calculation mL.
Weight-based dosing formula Dose = mg/kg × weight (kg).
Example of weight-based dosing 0.1 mg/kg × 20 kg = 2 mg; then solve
using
concentration: 2 mg needed from 2 mg/5
mL → 5
mL.
Answers with Verified Solutions | Latest
Updated 2026
Prepared-strength calculations Calculations involving mg/mL and tablets.
Percentage-strength solutions Solutions defined by the amount of drug
per 100
mL.
Steps to solve prepared-strength Convert units, set up proportion, solve for
calculations X.
Core formula for dosing Dose on hand / Volume = Desired dose /
X.
Example of prepared-strength 120 mg in 30 mL → give 15 mg; X = 3.75
calculation mL.
Weight-based dosing formula Dose = mg/kg × weight (kg).
Example of weight-based dosing 0.1 mg/kg × 20 kg = 2 mg; then solve
using
concentration: 2 mg needed from 2 mg/5
mL → 5
mL.
