ATI LPN
ATI LPN Pharmacology 2023 retake 1 Questions
Extract:
Question 1 of 5
A nurse is preparing to administer phenobarbital 3 mg/kg/day PO in two divided doses to a client who weighs 145 lb. The amount available is phenobarbital 100 mg/tablet. How many tablets should the nurse administer per dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Correct Answer: 1
Rationale:
To determine the total daily dose, convert the client's weight from lb to kg (145 lb / 2.2 = 65.91 kg).
Then calculate the total daily dose in mg (3 mg/kg/day * 65.91 kg = 197.73 mg/day). Since it is divided into two doses, the nurse should administer approximately 99 mg per dose. Since each tablet is 100 mg, the nurse should administer 1 tablet per dose. This is the correct answer, as it ensures the client receives the prescribed dose. Other choices are incorrect as they do not align with the calculated dose needed, leading to potential under or overdosing.
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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