A client is prescribed cimetidine 400 mg PO twice daily. It is available as an oral liquid of 100 mg per teaspoon. How many teaspoons should the client take per dose?
4 teaspoons
2 teaspoons
1 teaspoon
3 teaspoons
The Correct Answer is B
A. 4 teaspoons – This is incorrect because 4 teaspoons would provide 400 mg (100 mg x 4 = 400 mg), but the correct dose per administration is 400 mg. However, this is not the correct calculation, as only 2 teaspoons are needed.
B. 2 teaspoons – This is correct. The prescribed dose is 400 mg, and since the medication concentration is 100 mg per teaspoon, 2 teaspoons (100 mg x 2 = 200 mg) is the correct dose for each administration.
C. 1 teaspoon – This is incorrect because 1 teaspoon would only provide 100 mg, and the prescribed dose is 400 mg. This is not enough to meet the prescribed dose.
D. 3 teaspoons – This is incorrect because 3 teaspoons would provide 300 mg (100 mg x 3 = 300 mg), which is not enough to meet the prescribed 400 mg dose.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["C","D"]
Explanation
A. Glucagon (Glucagen): Glucagon is used to treat severe hypoglycemia and is not indicated for managing EPS or involuntary muscle spasms.
B. Metformin (Glucophage): Metformin is an oral hypoglycemic agent used to manage diabetes mellitus and is not relevant for treating EPS or involuntary muscle spasms.
C. Benztropine (Cogentin): Benztropine is an anticholinergic medication used to treat extrapyramidal symptoms (EPS), such as involuntary muscle spasms, caused by antipsychotic medications like prochlorperazine2.
D. Diphenhydramine (Benadryl): Diphenhydramine is an antihistamine with anticholinergic properties that can also be used to manage EPS, including dystonic reactions2.
Correct Answer is D
Explanation
A. Sucralfate does not neutralize gastric acid; antacids are responsible for neutralization.
B. Sucralfate does not mimic endogenous prostaglandins. Medications like misoprostol act as prostaglandins to protect the stomach lining.
C. Sucralfate does not block H2 receptors. Medications like cimetidine or ranitidine work through this mechanism to reduce acid production.
D. Sucralfate creates a viscous, protective barrier that adheres to the ulcer site, shielding it from further damage by gastric acid, bile, and pepsin for up to 6 hours, thereby promoting healing.
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