The physician ordered Aldactone (spironolactone) 15 mg twice daily for a child who weighs 42 lb. The safe dosage range is 1 to 2 mg/kg/day. What is the safe dosage range, per dose, for this child?
A) 18.63 to 37.27
B) 9.55 to 19.09
C) 19.54 to 39.09
D) 20 to 40

Question

Quizplus · Accepted Answer

Use the equivalent: 1 kg = 2.2 lb. Convert pounds to kilograms and round to the nearest hundredth: 42/2.2 = 19.09 kg. Determine the safe dosage range. The literature states that the recommended dosage range is 1 to 2 mg/kg/day. Lower range: 19.09 kg * 1 = 19.09 mg. Higher range: 19.09 kg * 2 = 38.18 mg. Therefore, the child's safe dosage range is 19.09 mg to 38.18 mg. Since this total is ordered divided into two doses, the safe dosage range/dose is 11ee3767_58b4_155a_b9a5_b3063d2aee02_TBLW1029_11 of 19.09 mg, which equals 9.55 mg, and 11ee3767_58b4_155b_b9a5_7167b6c912c8_TBLW1029_11 of 38.18 mg, which equals 19.09 mg.

The Physician Ordered Aldactone (Spironolactone) 15 Mg Twice Daily for a Child