A child who weighs 44 pounds with otilis media receives a prescription for azithromycin 10 mg/kg once, then 10 mg/kg daily for 4 days. The medication is available in a solution containing 200 mg/5mL. How many mL should the nurse administer on the first day of the treatment regimen? (Enter numeric value only.)
The Correct Answer is ["5"]
Given Information:
Child's weight: 44 pounds
Prescribed dose on the first day: 10 mg/kg
Medication concentration: 200 mg/5 mL
Convert weight to kilograms
1 pound is approximately 0.453592 kilograms
44 pounds x 0.453592 = 20 kilograms (approximately)
Calculate the total dose for the first day
Total dose = Prescribed dose x Weight
Total dose = 10 mg/kg x 20 kg = 200 mg
Calculate the volume to be administered
Volume to be administered = Total dose / Concentration
Volume to be administered = 200 mg / 200 mg/5 mL = 5 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["42"]
Explanation
Given Information:
Azithromycin dose: 500 mg
Volume: 500 mL
Infusion time: 2 hours
Drop factor: 10 gtt/mL
Calculate the total infusion time in minutes
2 hours x 60 min/hour = 120 minutes
Calculate the total volume to be infused
500 mL
Calculate the infusion rate in mL/min
Infusion rate = Total volume / Infusion time
Infusion rate = 500 mL / 120 min = 4.17 mL/min
Calculate the gtt/min
gtt/min = Infusion rate (mL/min) x Drop factor (gtt/mL)
gtt/min = 4.17 mL/min x 10 gtt/mL = 41.7 gtt/min
Round to the nearest whole number (as instructed)
gtt/min = 42 gtt/min
Correct Answer is ["33"]
Explanation
Given Information:
Prescribed dose: 250 mg every 8 hours
Amoxicillin bottle contains: 50 mL (as seen in the image)
Calculate the total dose per day
Total dose per day = Prescribed dose x Number of doses per day
Total dose per day = 250 mg/dose x 3 doses/day = 750 mg/day
Calculate the total number of doses in the bottle
Total doses in bottle = Total amoxicillin in bottle / Prescribed dose per dose
Total doses in bottle = 50 mL x 500 mg/mL (assumed concentration) / 250 mg/dose = 100 doses
Calculate the number of days the bottle will last
Days = Total doses in bottle / Doses per day
Days = 100 doses / 3 doses/day = 33.33 days
Round down to the nearest whole number (since the bottle won't last a partial day)
Days = 33 days
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