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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Related Questions
Correct Answer is ["3.5"]
Explanation
Convert the child’s weight from pounds to kilograms:
52 lb÷2.2=23.6 kg.
Calculate the total daily dose in micrograms (mcg):
7.5 mcg/kg/day×23.6 kg=177 mcg/day.
Determine the volume in mL to administer:
The elixir concentration is 50 mcg/mL
177 mcg÷50 mcg/mL=3.54 mL.
Round to the nearest tenth:
3.54 rounds to 3.5 mL.
Correct Answer is ["1"]
Explanation
Step 1: Identify the conversion factor.
We need to convert milliliters (mL) to ounces (oz). The conversion factor is:
1 ounce (oz) = 30 milliliters (mL)
Step 2: Set up the conversion.
The prescribed dose is 30 mL. We want to convert 30 mL to ounces.
Using the conversion factor:
Amount in oz=Amount in mL/Conversion factor=30 mL/30 mL/oz
Step 3: Perform the calculation.
Amount in oz=30/30=1 oz
Step 4: Round the answer (if needed).
1 oz is a whole number
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