A nurse is providing care to a 4-year-old child hospitalized with vomiting and suspected dehydration. The health care provider has prescribed ondansetron 0.5 mg/kg IV as a one-time dose. The safe dose is 5 mg/kg/dose. The child weighs 44 lbs. How many milligrams should the nurse administer? Round your answer to the nearest tenth if needed
The Correct Answer is ["10"]
To calculate the dosage of ondansetron for the child, first convert the child's weight from pounds to kilograms, knowing that 1 kilogram equals 2.2 pounds. The child weighs 44 lbs, which is equivalent to 20 kg (44 lbs / 2.2 lbs per kg). The prescribed dose is 0.5 mg/kg, so you would multiply the child's weight in kilograms by the dose: 20 kg * 0.5 mg/kg = 10 mg. Since the safe dose is up to 5 mg/kg per dose and the child's weight is 20 kg, the maximum safe dose would be 100 mg (20 kg * 5 mg/kg). Therefore, the nurse should administer 10 mg, as it is within the safe dose range.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Administering Benadryl may help with allergic reactions but is not the immediate priority when the patient is showing signs of severe hypotension and respiratory distress.
B. Applying ice to the site may help with local swelling but does not address the systemic reaction the child is experiencing.
C. Giving epinephrine is the priority action as it counteracts the anaphylactic reaction, improves blood pressure, and alleviates respiratory distress.
D. Determining if the sting is in situ is less critical than addressing the child's life-threatening symptoms.
Correct Answer is B
Explanation
A. Passing flatus every 30 minutes indicates bowel activity and suggests that the child may be able to resume oral intake.
B. Absent bowel sounds indicate a lack of gastrointestinal function, which supports the continuation of NPO status until bowel function returns.
C. An increase in abdominal girth, even by 1 cm, can be concerning postoperatively and may indicate fluid retention or other issues, warranting further assessment.
D. Pain at the operative site is expected post-surgery, but it does not directly relate to the child’s ability to resume oral intake.
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