Order: Aminophyllin 25 mg PO q 8h
Recommended: 3-6 mg/kg/day in divided doses q 8h
Child's Weight: 35 pounds
Available: Aminophyllin 125 mg/5ml
What is the minimum recommended daily dose for this child?
4.7 mg PO-9.5 mg PO
47.7 mg PO-95.4 mg PO
5.9 mg PO-11.9 mg PO
15.9 mg PO-31.8 mg PO
The Correct Answer is B
Convert the child's weight from pounds (lb) to kilograms (kg).
Client weight: 35 lbs
1 kg = 2.2 lbs
Weight (kg) = 35 lbs / 2.2 lbs/kg
= 15.909 kg
Calculate the minimum recommended daily dose in milligrams (mg/day).
Minimum recommended rate: 3 mg/kg/day
Minimum daily dose (mg) = Minimum recommended rate (mg/kg/day) x Weight (kg)
= 3 mg/kg/day x 15.909 kg
= 47.727 mg/day.
Calculate the maximum recommended daily dose in milligrams (mg/day).
Maximum recommended rate: 6 mg/kg/day
Maximum daily dose (mg) = Maximum recommended rate (mg/kg/day) x Weight (kg)
= 6 mg/kg/day x 15.909 kg
= 95.455 mg/day
Round the minimum and maximum doses to the nearest tenth
Minimum daily dose: 47.7 mg
Maximum daily dose: 95.5 mg.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Desired dose = 0.06 mg.
Available concentration = 0.05 mg per 1 mL.
Calculate the volume to administer in milliliters (mL).
Volume (mL) = Desired Dose (mg) / Concentration (mg/mL)
= 0.06 mg / (0.05 mg / 1 mL)
= 0.06 mg / 0.05 mg/mL
= 1.2 mL.
Correct Answer is D
Explanation
A. Start a new IV access to avoid compatibility issues with the new antibiotic: A new IV site is not always necessary unless incompatibility is confirmed. Starting a new IV without assessing compatibility would expose the patient to unnecessary discomfort and risk of complications.
B. Start a new IV access to avoid too much volume at one IV site: The volume infused at one IV site is generally well tolerated if the line is patent. Adding a piggyback antibiotic does not usually cause excessive volume at the site.
C. Increase the continuous infusion to facilitate administration of the antibiotic: Increasing the rate of continuous infusion is unsafe because it alters the prescribed fluid balance. This could put the patient at risk for fluid overload or disrupt carefully ordered fluid therapy.
D. Check if the antibiotic is compatible with the continuous infusion solution: This is the safest action because some drugs may precipitate or inactivate when combined in the same line. Verifying compatibility ensures that the antibiotic can be administered through the existing IV line without compromising safety or effectiveness.
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