ATI PN Management 2020
ATI PN Management 2020 ( 86 Questions)
A nurse is preparing to administer chlorpromazine 0.55 mg/kg IM to a child who weighs 66 lb. Available is chlorpromazine 25 mg/mL for injection. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero
To calculate the volume (mL) that the nurse should administer, we can follow these steps:
Convert the weight from pounds to kilograms.
1 lb=0.453592 kg.
66 lb×0.453592 kg/lb≈29.937 kg
Calculate the total dose using the weight and prescribed dose:
Total Dose (mg)=Dose per kg×Weight (kg)
Total Dose=0.55 mg/kg×29.937 kg≈16.465 mg
Determine the volume using the concentration of the available solution:
Volume (mL) =Total Dose (mg)/Concentration (mg/mL)
Volume=16.465mg/25 mg/mL≈ 0.6586 mL
Therefore, the nurse should administer approximately 0.7 mL of chlorpromazine for the 0.55 mg/kg IM dose, rounded to the nearest tenth.