A nurse is preparing to administer hydroxyzine 1 mg/kg IM to a school-age child who weighs 67 lb. Available is hydroxyzine injection 25 mg/mL. 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.)
The Correct Answer is ["1.2"]
First, convert the child's weight from pounds to kilograms: 67 lb / 2.205 lb/kg = 30.39 kg
Calculate the total dose of hydroxyzine needed: 1 mg/kg * 30.39 kg = 30.39 mg
Calculate the volume of hydroxyzine to administer: 30.39 mg / 25 mg/mL = 1.2156 mL
Round to the nearest tenth: 1.2156 mL rounded to the nearest tenth is 1.2 mL.
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Related Questions
Correct Answer is ["1"]
Explanation
Step-by-Step Solution:
Convert the child's weight from pounds to kilograms.
1 pound is approximately 0.453592 kilograms.
88 pounds = 88 x 0.453592 = 39.916736 kilograms.
Calculate the total dose of morphine.
The prescribed dose is 0.1 mg/kg.
The child weighs 39.916736 kg.
Total dose = 0.1 mg/kg x 39.916736 kg = 3.9916736 mg.
Calculate the volume of morphine injection to administer.
The available morphine injection is 4 mg/mL.
To find the volume, we can set up a proportion:
4 mg / 1 mL = 3.9916736 mg / x mL
Cross-multiplying:
4x = 3.9916736
Solving for x:
x = 3.9916736 / 4 = 0.9979184 mL
Round the answer to the nearest whole number: 1 mL
Correct Answer is ["1"]
Explanation
Step-by-Step Solution:
Convert the child's weight from pounds to kilograms.
1 pound is =0.453592 kilograms.
86 pounds = 86 x 0.453592 = 38.999952 kilograms.
Calculate the total daily dose of quinine.
The prescribed dose is 25 mg/kg/day.
The child weighs 38.999952 kg.
The total daily dose = 25 mg/kg/day x 38.999952 kg = 974.9988 mg/day.
Determine the dose per administration.
The total daily dose is divided into three equal doses (every 8 hours).
The dose per administration = 974.9988 mg/day / 3 = 324.9996 mg per dose.
Calculate the number of tablets to administer per dose.
Each tablet contains 325 mg of quinine.
To find the number of tablets, divide the dose per administration by the amount of quinine per tablet:
Number of tablets = 324.9996 mg / 325 mg/tablet = 0.999999 tablets
Round the answer to the nearest whole number: 1 tablet.
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