HESI LPN
Pharmacology HESI 2023 Quizlet
1. The practical nurse administers lactulose to a client. Which client outcome would indicate a therapeutic response?
- A. An increase in urine output
- B. Two to three soft stools per day
- C. Absence of nausea
- D. Decreased serum potassium
Correct answer: B
Rationale: Lactulose is a type of laxative that works by preventing the absorption of ammonia in the colon, leading to increased water absorption in the stool and softening of the stool. The therapeutic response to lactulose is indicated by the passage of two to three soft stools per day, showing that the medication is effectively promoting bowel movements.
2. A client with multiple sclerosis starts a new prescription, baclofen, to control muscle spasticity. Three days later, the client calls the clinic nurse and reports feeling fatigued and dizzy. Which instruction should the nurse provide?
- A. Avoid hazardous activities until symptoms subside
- B. Contact the healthcare provider immediately
- C. Continue taking the medication every day
- D. Stop taking the medication until the unpleasant side effects wear off
Correct answer: A
Rationale: The correct instruction for the nurse to provide is to advise the client to avoid hazardous activities until the symptoms of fatigue and dizziness subside. These side effects can impair the client's ability to engage in activities that require alertness and coordination, posing a risk for accidents. Contacting the healthcare provider immediately may not be necessary unless the symptoms worsen or persist. Continuing to take the medication every day without addressing the side effects can lead to further complications. Stopping the medication abruptly without healthcare provider guidance can also be risky and may not be necessary if the symptoms improve with time.
3. A client is prescribed an antacid for the treatment of peptic ulcer disease. What is the action of this medication that is effective in treating the client's ulcer?
- A. Decrease in the production of gastric secretions
- B. Production of an adherent barrier over the ulcer
- C. Maintenance of a gastric pH of 3.5 or above
- D. Decrease in the gastric motor activity
Correct answer: C
Rationale: The correct answer is C. Antacids work by neutralizing gastric acids and maintaining a gastric pH of 3.5 or above. This pH level is crucial to prevent the activation of pepsinogen, a precursor to pepsin, which can further damage the ulcer. Choice A is incorrect because antacids do not directly decrease the production of gastric secretions; they neutralize existing acid. Choice B is incorrect as antacids do not form a physical barrier over the ulcer but rather neutralize the acid around it. Choice D is also incorrect as antacids do not affect gastric motor activity but focus on reducing acidity in the stomach.
4. A client with diabetes mellitus type 2 is prescribed dapagliflozin. The nurse should monitor for which potential adverse effect?
- A. Genital infections
- B. Hypoglycemia
- C. Hyperglycemia
- D. Nausea
Correct answer: A
Rationale: The correct answer is A: Genital infections. Dapagliflozin, a medication used in diabetes mellitus type 2, is associated with an increased risk of genital infections. Its mechanism of action involves promoting glucose excretion through the urine, creating a favorable environment for microbial growth in the genital area. Monitoring for genital infections is crucial when a client is prescribed dapagliflozin. Hypoglycemia (choice B) is not a common adverse effect of dapagliflozin since it does not directly lower blood glucose levels. Hyperglycemia (choice C) is also unlikely as dapagliflozin is intended to help lower blood glucose levels. Nausea (choice D) is a less common side effect of dapagliflozin compared to genital infections.
5. A client with rheumatoid arthritis is prescribed sulfasalazine. Which instruction should the nurse include in the client's teaching plan?
- A. Take this medication with meals.
- B. Avoid sunlight while taking this medication.
- C. Report any signs of infection to the healthcare provider.
- D. Take this medication on an empty stomach.
Correct answer: A
Rationale: The correct instruction to include in the client's teaching plan regarding sulfasalazine is to take the medication with meals. Taking sulfasalazine with food helps to minimize gastrointestinal upset, which is a common side effect of the medication. Choice B is incorrect because avoiding sunlight is not specifically related to sulfasalazine. Choice C is important but not directly related to the administration of sulfasalazine. Choice D is incorrect because sulfasalazine should be taken with meals to reduce gastrointestinal side effects.
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