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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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["250"]
Explanation
Identify the given information:
Volume of the solution: 500 mL
Infusion time: 2 hours
Calculate the infusion rate in mL/hr:
Infusion rate = Volume / Time
Substitute the values:
Infusion rate = 500 mL / 2 hr
Calculate the result:
Infusion rate = 250 mL/hr
Correct Answer is ["100"]
Explanation
Identify the given information:
Concentration of phenytoin oral suspension: 100 mg/4 mL
Volume of the container: 4 mL
Calculate the total dose of phenytoin:
Total dose = Concentration (mg/mL) x Volume (mL)
Substitute the values:
Total dose = 100 mg/4 mL x 4 mL
Calculate the result:
Total dose = 100 mg
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