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 C

Explanation

This is because aprepitant can cause dehydration as an adverse effect, so the nurse will want to encourage the client to drink as much liquid as possible.

Choice A is wrong because the client’s temperature would not be affected by aprepitant.

Choice B is wrong because the client must be encouraged for fluid intake as tolerated, so placing an NPO sign on the door would not be appropriate for this client.

Choice D is wrong because elevating the head of the bed would be unnecessary for a client receiving aprepitant.

A. Decrease theophylline dosage immediately. B. Decrease theophylline dose when normal thyroid function returns. C. Discontinue the client’s theophylline. D. Increase theophylline dosage immediately.

Correct Answer is B

Explanation

This is because hypothyroidism can reduce the metabolism and clearance of theophylline, leading to higher serum levels and increased risk of toxicity. Therefore, when the thyroid function is restored by levothyroxine or liothyronine, the dose of theophylline may need to be lowered to avoid excessive effects.

Choice A is wrong because decreasing theophylline dosage immediately may result in suboptimal control of asthma symptoms.

The dose adjustment should be based on serum theophylline levels and clinical response.

Choice C is wrong because discontinuing the client’s theophylline may cause worsening of asthma and potentially life-threatening complications.

Theophylline is an important bronchodilator that should not be stopped abruptly without medical supervision.

Choice D is wrong because increasing theophylline dosage immediately may cause overdose and adverse effects such as nausea, vomiting, headache, tachycardia, arrhythmias, seizures and even death.

The dose of theophylline should be carefully titrated according to serum levels and clinical response.

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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

What is an appropriate nursing action for a hospitalized client receiving aprepitant?

Correct Answer is C

Explanation

The nurse is caring for a client newly diagnosed with hypothyroidism. The client also takes theophylline to control asthma symptoms. What change may need to be made to the client’s theophylline dose?

Correct Answer is B

Explanation

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?

A client with a duodenal ulcer is receiving sucralfate for short-term treatment. What should the nurse advise the client to avoid?

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

The nurse should question an order for bismuth salts for a client with what condition?

A nurse is providing client education to a client who has had corticosteroids prescribed. What drug should the nurse teach the client to avoid while taking the corticosteroids?

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