Physician's Order
The doctor orders Zithromax 500 mg orally, 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.
Is the order safe?
False
True
The Correct Answer is A
- Convert weight to kilograms:
82 lb ÷ 2.2 = 37.27 kg - Calculate safe dose range:
Minimum dose: 10 mg × 37.27 kg = 372.7 mg/day
Maximum dose: 12 mg × 37.27 kg = 447.24 mg/day
- Compare with ordered dose:
Ordered dose = 500 mg/day
Safe range = 372.7 mg to 447.24 mg/day
→ 500 mg exceeds the maximum safe dose (447.24 mg)
Final Answer: No, the order is not safe.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. While frequent repositioning helps prevent pressure ulcers, ROM exercises specifically target joint mobility rather than skin integrity.
B. ROM exercises are not primarily aimed at reducing pain, though they may help indirectly. Pain management usually involves medications and other comfort measures.
C. ROM can aid circulation to some extent, but its main benefit is maintaining joint flexibility and muscle length.
D. Contractures—permanent tightening of muscles, tendons, or joints—can be prevented through regular ROM exercises and proper positioning, making this the most appropriate answer.
Correct Answer is C
Explanation
A. A balanced diet is important for overall health, but it is not specific enough to be the best action for preventing osteoporosis.
B. Calcium supplementation can help, but excessive supplementation without medical advice is not recommended as the best initial action.
C. Weight-bearing exercise (like walking, jogging, or resistance training) stimulates bone formation and helps maintain bone density, making it one of the most effective ways to prevent osteoporosis.
D. Increasing intake of milk products can help improve calcium intake, but without the mechanical stress of exercise, it is not as effective in preventing bone loss.
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