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 ["350"]
Explanation
Step by step calculation:
Plug in the values:
1 tablet contains 350 mg of calcium carbonate.
Perform the calculations:
1 tablet / 350 mg = 1 tablet / x mg
Solve for x:
Cross-multiply: 350 mg x 1 tablet = 1 tablet x x mg
Rounding and final answer:
x = 350 mg.
Correct Answer is ["2.3"]
Explanation
Step-by-step calculation:
The child's weight is 77 lb.
The medication dosage is 10 mg/kg.
The available medication concentration is 150 mg/mL.
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 × 10 mg/kg = 350 mg
Calculating the volume to administer:
Use the concentration of the medication: 350 mg ÷ 150 mg/mL = 2.33 mL
Rounding the answer:
2.33 rounds to 2.3 mL
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