HESI LPN
Pharmacology HESI Practice
1. A patient with irritable bowel syndrome starts a new prescription for dicyclomine, an anticholinergic medication. The client reports the onset of sensitivity to light and a dry mouth. How should the nurse respond?
- A. Determine if the medication is being taken correctly
- B. Provide instructions on managing these side effects
- C. Schedule an appointment for evaluation by the healthcare provider
- D. Advise stopping the medication until the unpleasant side effects wear off
Correct answer: B
Rationale: The correct response is to provide instructions on managing these side effects. Sensitivity to light and dry mouth are common side effects of anticholinergic medications like dicyclomine. It is essential for the nurse to educate the patient on strategies to cope with these side effects, such as staying hydrated to address dry mouth and wearing sunglasses to reduce sensitivity to light. Option A is not the priority as the side effects are expected with this medication and do not necessarily indicate incorrect use. Option C is not immediately necessary as the side effects are common and can be managed without a healthcare provider evaluation. Option D is not recommended unless advised by the healthcare provider as abruptly stopping the medication can lead to worsening symptoms or withdrawal effects.
2. Which assessment finding indicates that the expected outcome of administering donepezil to a client with Alzheimer's disease has been accomplished?
- A. Increased muscle strength and tone
- B. Fewer episodes of urinary incontinence
- C. Decreased confusion and improved mood
- D. Reversal of the disease process as evidenced by increased functioning
Correct answer: C
Rationale: The correct answer is C. Donepezil is a medication used for individuals with Alzheimer's disease. Its mechanism of action involves increasing acetylcholine levels by inhibiting its breakdown, which benefits cognitive function. The expected outcome of administering donepezil is a decrease in confusion and an improvement in mood due to the medication's impact on neurotransmitters. Choices A, B, and D are incorrect because donepezil does not primarily target muscle strength, urinary incontinence, or disease reversal; instead, it aims to slow down the progression of cognitive decline in Alzheimer's disease.
3. Prior to administration of the initial dose of the GI agent misoprostol, which information should the nurse obtain from the client?
- A. Taking an anti-emetic medication
- B. History of glaucoma
- C. Currently pregnant
- D. Allergy to aspirin
Correct answer: C
Rationale: The correct answer is C. It is crucial for the nurse to obtain information regarding the client's pregnancy status before administering misoprostol, as this medication is contraindicated in pregnancy due to its potential to cause uterine contractions. This can lead to serious complications such as miscarriage or premature birth. Therefore, assessing whether the client is currently pregnant is essential to ensure the safe administration of misoprostol. Choices A, B, and D are not directly related to the administration of misoprostol. While knowing if the client is taking an anti-emetic medication may be relevant to prevent drug interactions, a history of glaucoma and allergy to aspirin are not primary concerns before administering misoprostol.
4. 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.
5. A client with gastroesophageal reflux disease (GERD) is prescribed omeprazole. The nurse should reinforce which instruction?
- A. Take this medication in the morning before breakfast.
- B. Take this medication with meals.
- C. Avoid taking this medication with antacids.
- D. Take this medication at bedtime.
Correct answer: A
Rationale: The correct instruction for a client with GERD prescribed omeprazole is to take the medication in the morning before breakfast. Omeprazole works best when taken on an empty stomach, approximately 30 minutes before the first meal of the day. This timing maximizes its effectiveness in reducing stomach acid production and helps manage symptoms of GERD more efficiently. Choice B is incorrect because taking omeprazole with meals may reduce its efficacy as it needs an empty stomach for optimal absorption. Choice C is incorrect because omeprazole can be taken with or without food, but it should not be taken with antacids as they can affect its absorption. Choice D is incorrect because taking omeprazole at bedtime is less effective compared to taking it before breakfast due to the circadian rhythm of gastric acid secretion.
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