The nurse is reviewing medication prescriptions.
Which is an appropriate dosage and frequency of cimetidine?

800 mg PO at bedtime.

150 mg PO b.i.d.

20 mg PO b.i.d.

300 mg PO at bedtime.

Answer and Explanation

The Correct Answer is A

800 mg PO at bedtime is an appropriate dosage and frequency of cimetidine for the treatment of gastric ulcer. Cimetidine is a histamine H antagonist that reduces the secretion of gastric acid.

Choice B is wrong because 150 mg PO b.i.d. is too low of a dose for cimetidine. The usual adult dose for duodenal ulcer is 800 mg PO once a day at bedtime or 300 mg PO four times a day.

Choice C is wrong because 20 mg PO b.i.d. is not a valid dose for cimetidine.

The lowest available tablet strength is 100 mg.

Choice D is wrong because 300 mg PO at bedtime is also too low of a dose for cimetidine.

The usual adult dose for gastric ulcer is 800 mg PO once a day at bedtime or 300 mg PO four times a day.

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Correct Answer is A

Explanation

This is because levothyroxine can increase the anticoagulant effect of oral anticoagulants and increase the risk of bleeding. The nurse should check the client’s prothrombin time and international normalized ratio (INR) regularly and report any abnormal values to the prescriber.

Choice B is wrong because hypothyroidism does not increase the risk of infection.

Choice C is wrong because hypothyroidism does not affect the level of consciousness unless it is severe and causes myxedema coma.

Choice D is wrong because hypothyroidism does not cause electrolyte imbalances.

Normal ranges for prothrombin time are 11 to 13.5 seconds and for INR are 0.8 to 1.22.

A. Number of times client’s family reports the client is nauseated. B. How well the client is eating. C. Color and amount of vomit, and frequency of vomiting episodes. D. Client’s nutritional status and fluid balance.

Correct Answer is C

Explanation

The nurse would assess these factors to determine the need for therapy. Some possible explanations for the other choices are:

Choice A. Number of times client’s family reports the client is nauseated.

This is not a reliable indicator of the severity or cause of nausea and vomiting.

The nurse should assess the client directly and not rely on the family’s reports.

Choice B. How well the client is eating.

This is not a specific or objective measure of nausea and vomiting.

The client may have other reasons for not eating well, such as loss of appetite, taste changes, or pain.

The nurse should also monitor the client’s weight, hydration status, and electrolyte levels.

Choice D. Client’s nutritional status and fluid balance.

These are important aspects of the client’s overall health, but they are not directly related to nausea and vomiting.

The nurse should assess these factors as part of the comprehensive care plan, but they are not sufficient to determine the need for therapy.

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The nurse is reviewing medication prescriptions. Which is an appropriate dosage and frequency of cimetidine?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A client has a history of atrial fibrillation and is taking an oral anticoagulant. The client has been newly diagnosed with hypothyroidism and placed on levothyroxine. What assessment should the nurse prioritize?

Correct Answer is A

Explanation

A client has begun reporting nausea and vomiting. What would the nurse assess to determine the need for therapy?

Correct Answer is C

Explanation

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The nurse is reviewing medication prescriptions.
Which is an appropriate dosage and frequency of cimetidine?