An 88 pound child with iron deficiency anemia has been prescribed ferrous fumarate 3 mg/kg/day PO three times daily. The medication is available in oral suspension of 100 mg/5 ml. The nurse is instructing the mother in measuring the correct dose. How many ml should the child receive for each dose?
The Correct Answer is ["2"]
Calculating the Ferrous Fumarate Dose
Problem: Administer ferrous fumarate 3 mg/kg/day PO three times daily to an 88-pound child. The available concentration is 100 mg/5 mL.
Steps:
Convert pounds to kilograms:
88 pounds x (1 kg / 2.20462 pounds) ≈ 39.9 kg
Calculate the daily dose:
3 mg/kg/day x 39.9 kg = 119.7 mg/day
Calculate the dose per administration (TID):
119.7 mg/day / 3 doses = 39.9 mg/dose
Set up a proportion:
We want to find the number of milliliters (mL) needed.
We know the desired dose (39.9 mg) and the concentration of the medication (100 mg/5 mL).
Proportion:
x mL / 39.9 mg = 5 mL / 100 mg
Cross-multiply:
100x = 199.5
Solve for x:
x = 199.5 / 100
x ≈ 2
Answer: The child should receive approximately 2 mL of ferrous fumarate oral suspension for each dose.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["1"]
Explanation
To calculate the number of tablets needed, we can set up a proportion:
x tablets / 0.05 mg = 1 tablet / 0.1 mg
Cross-multiplying:
0.1x = 0.05
Solving for x:
x = 0.05 / 0.1
x = 0.5
Therefore, the nurse should administer 0.5 tablets of levothyroxine sodium (Synthroid).
Since we cannot administer a fraction of a tablet, we round up to the nearest whole number.
So, the nurse should administer 1 tablet.
Correct Answer is ["3"]
Explanation
First, let's convert grams to milligrams:
0.3 grams x 1000 mg/gram = 300 mg
Then, set up a proportion:
x capsules / 300 mg = 1 capsule / 100 mg
Cross-multiply:
100x = 300
Solve for x:
x = 300 / 100
x = 3
Therefore, the nurse should administer 3 capsules of docusate sodium (Colace).
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