A nurse is preparing to administer ferrous fumarate 3 mg/kg PO 3 times a day to a toddler who weighs 22 lb. Available is ferrous fumarate drops 45 mg/0.6 mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["0.4"]
Step by step calculation:
The child's weight is 22 lb.
The medication dosage is 3 mg/kg.
The available medication concentration is 45 mg/0.6 mL.
Calculating the total dose in mg per dose:
Convert the child's weight to kg: 22 lb ÷ 2.2 lb/kg = 10 kg
Calculate the total dose per dose: 10 kg × 3 mg/kg = 30 mg
Calculating the volume to administer per dose:
Use the concentration of the medication: 30 mg ÷ (45 mg/0.6 mL) = 30 mg ÷ 75 mg/mL = 0.4 mL
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["35"]
Explanation
Step by step calculation:
Calculating the total dose in mg:
Convert the child's weight to kg: 77 lb ÷ 2.2 lb/kg = 35 kg
Calculate the total dose: 35 kg × 40 mg/kg = 1400 mg
Calculating the volume to administer:
Use the concentration of the medication: 1400 mg ÷ 40 mg/mL = 35 mL
Correct Answer is ["240"]
Explanation
Step-by-step calculation:
The nurse needs to administer 120 mL of sodium chloride.
The infusion time is 30 minutes.
Calculating the flow rate in mL/hr:
Convert the infusion time to hours: 30 minutes ÷ 60 minutes/hour = 0.5 hours
Divide the total volume by the infusion time: 120 mL ÷ 0.5 hours = 240 mL/hour
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