ATI LPN
ATI PN Pharmacology 2020 Questions
Extract:
Question 1 of 5
A nurse is preparing to administer somatropin 0.24 mg/kg/week subcutaneously to be divided into six daily doses to a school-age child who weighs 66 lb. How many mg should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Correct Answer: A
Rationale:
To calculate the dosage per dose, first convert the child's weight from pounds to kilograms: 66 lb ÷ 2.2 = 30 kg.
Then, multiply the weight by the prescribed dosage: 30 kg × 0.24 mg/kg/week = 7.2 mg/week. Since the total weekly dosage is divided into 6 daily doses, divide 7.2 mg by 6 to get the per-dose amount: 7.2 mg ÷ 6 = 1.2 mg.
Therefore, the nurse should administer 1.2 mg per dose.
Choice A (1.2 mg) is correct because it reflects this calculation. The other choices are incorrect as they do not accurately represent the calculated dosage based on the child's weight and the prescribed dosage regimen.
Question 2 of 5
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Question 3 of 5
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Question 4 of 5
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Question 5 of 5
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