ATI RN Pharmacology 2019 Exam 6 | Nurselytic

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ATI RN Pharmacology 2019 Exam 6 Questions

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Question 1 of 5

A nurse is preparing to administer sulfadiazine 150mg/kg PO to divide equally every 6 hr to an adolescent who weighs 88 lb. Available is sulfadiazine 500 mg/tab. How many tablets should the nurse administer per dose? (Round to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Correct Answer: B

Rationale:
To calculate the dose, we first convert the weight from lb to kg (1kg = 2.2 lb). 88 lb / 2.2 = 40 kg.
Then, we multiply 150mg/kg by the weight: 150mg/kg x 40 kg = 6000 mg total dose. Next, we divide the total dose by the available dose per tablet (500 mg): 6000 mg / 500 mg = 12 tablets total. Since the dose is divided equally every 6 hours, we divide the total by the number of doses per day (24 hours / 6 hours = 4 doses per day): 12 tablets / 4 doses = 3 tablets per dose.
Therefore, the nurse should administer 3 tablets per dose.
Choice B is correct.

Choices A, C, and D are incorrect because they do not accurately calculate the correct dose based on the weight and available tablet strength.

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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