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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","D","E"]
Explanation
A. Washing hands frequently is important for preventing infections, which can trigger a sickle cell crisis.
B. Cold weather can cause blood vessels to constrict, increasing the risk of a sickle cell crisis, making this statement correct.
C. Restricting fluids during illness is not advisable; staying hydrated is crucial for preventing sickle cell crises.
D. Carrying a water bottle encourages adequate hydration, which is essential for individuals with sickle cell anemia to help prevent crises.
E. Taking medications as directed is vital for managing sickle cell disease and preventing complications.
Correct Answer is B
Explanation
A. While fluid replacement is important, in a toxic-appearing child, oral fluids may not be safe or adequate due to potential dehydration and risk of worsening condition.
B. Administering antibiotics is the priority action because the child shows signs of potential serious infection, and timely antibiotic treatment is crucial in young infants who may quickly deteriorate.
C. Obtaining a specimen for a complete blood count is necessary for diagnosing infection but is not as urgent as administering antibiotics.
D. While obtaining a urinalysis may help identify a urinary tract infection, it is not the immediate priority compared to starting antibiotic therapy.
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