Physician's Orders
The doctor orders Zithromax 500mg p.o.daily for a child who weighs 82 pounds. The safe dose range for this medication is 10-12 mg/kg/day. Zithromax is available in 250mg/tablets
What is the child's weight in kilograms? (LABEL CORRECTLY & Round to tenths)
The Correct Answer is ["37.3"]
Order: Zithromax 500 mg p.o. daily
Child’s Weight: 82 pounds
Question: What is the child’s weight in kilograms?
Use the conversion formula:
Weight (kg) = Weight (lb) ÷ 2.2
Weight = 82 ÷ 2.2 = 37.27 kg
Rounded to the nearest tenth: 37.3 kg
Final Answer: 37.3 kg
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["260"]
Explanation
Use the BSA (Body Surface Area) formula to calculate the child’s dose:
Child's dose = BSA of child × (Adult dose ÷ 1.73)
Child's dose = 0.45 × (1000 ÷ 1.73)
Child's dose = 0.45 × 578.03
Child's dose ≈ 260.1 mg
Round to a practical dose: 260 mg
Correct Answer is ["167"]
Explanation
Use the formula to calculate flow rate in drops per minute:
Flow rate (gtt/min) = (Volume to be infused × Drop factor) ÷ Time (in minutes)
Substitute the values:
Flow rate = (250 mL × 20 gtt/mL) ÷ 30 min
Flow rate = 5000 ÷ 30
Flow rate ≈ 166.67
Round to the nearest whole number: 167 gtt/min
Final Answer:167 gtt/min
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