ATI RN
ATINur2708 Pediatrics Final Exam Questions
Extract:
8-year-old child with sickle cell disease, prescribed hydroxyurea 20 mg/kg per dose, weighs 55 lb.
Question 1 of 5
A health care provider has prescribed hydroxyurea 20 mg/kg per dose by mouth to an 8 year old child as part of a treatment regimen for sickle cell disease. This is a safe dose. The child weighs 55 lb. How many milligrams should the nurse administer? Enter only the number.
Correct Answer: A
Rationale: The correct answer is 500.
To calculate the dose, first convert the child's weight from pounds to kilograms (55 lb รท 2.2 = 25 kg).
Then, multiply the weight by the prescribed dose (20 mg/kg) to get the total dose (25 kg x 20 mg/kg = 500 mg). This is the safe dose for the child. Other choices are incorrect because they do not follow the correct conversion and calculation steps, resulting in inaccurate dosages.
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