A dosage of 20 mg has been ordered. The strength that is available is 25 mg in 1.5 mL. How many mL should be given?

0.8 mL
1.2 mL
1.6 mL
2.2 mL


1.2 mL

Rationale: 25 mg / 1.5 mL = 20 mg / X mL. Therefore, 25X = 1.5 x 20 . X = 1.5 x 20 ---------- 25 = 30 ---- 25 = 1.2 mL.

Health Professions

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