A nurse is preparing to administer levothyroxine 100mcg po to a client who has hypothyroidism.
Available levothyroxine is 50 mcg tablets.
How many tablets should the nurse administer? (Round off to the nearest whole number.
Use a leading zero if it applies. Do not use a trailing zero.)
1 tablet.
2 tablets.
3 tablets.
4 tablets.
The Correct Answer is B
The nurse should administer 2 tablets of levothyroxine 50 mcg to give the client a total dose of 100 mcg.
Choice A is not the best answer because administering 1 tablet of levothyroxine 50 mcg would only give the client a total dose of 50 mcg, which is not enough.
Choice C is not the best answer because administering 3 tablets of levothyroxine 50 mcg would give the client a total dose of 150 mcg, which is too much.
Choice D is not the best answer because administering 4 tablets of levothyroxine 50 mcg would give the client a total dose of 200 mcg, which is too much.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
NPH insulin has an onset of action of about 1 to 2 hours, peaks in 4 to 12 hours, and lasts up to 24 hours. Given the administration at 0700, the onset of action would typically occur between 0800 and 0900. Hypoglycemia is most likely to occur during the onset or peak periods due to the insulin's glucose-lowering effect.
Among the options:
- A. 0715: Too early, as NPH insulin's onset is not within 15 minutes.
- B. 0800: Within the onset window (1 hour after administration), making it a plausible time to observe for hypoglycemia.
- C. 0900: Also within the onset window (2 hours after administration), another reasonable time to monitor.
- D. 1000: Slightly beyond the typical onset but still early in the action profile, where hypoglycemia could occur if glucose levels drop.
Since the question asks for the time to observe for hypoglycemia caused by the onset, the earliest time within the onset window is most appropriate. Thus, B. 0800 is the best answer, as it aligns with the start of NPH insulin’s onset period.
Final Answer: B. 0800
Correct Answer is B
Explanation
The nurse should administer 2.5 tablets.
To determine the number of tablets needed to administer a dose of 5 mg using 2 mg tablets, you can divide the desired dose (5 mg) by the available tablet strength (2 mg/tablet): 5 mg ÷ 2 mg/tablet = 2.5 tablets.
Choice A is incorrect because administering 2 tablets would only provide a dose of 4 mg (2 tablets x 2 mg/tablet = 4 mg).
Choice C is incorrect because administering 2.6 tablets would provide a dose of 5.2 mg (2.6 tablets x 2 mg/tablet = 5.2 mg).
Choice D is incorrect because administering 3 tablets would provide a dose of 6 mg (3 tablets x 2 mg/tablet = 6 mg).
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