HESI LPN
Pharmacology HESI 55 Questions 2023
1. A practical nurse (PN) is reviewing teaching with the client and/or significant others about the concurrent use of benztropine and olanzapine to manage psychotic behavior. What information should the PN reinforce?
- A. Benztropine will reduce olanzapine's side effect of urinary retention.
- B. Benztropine potentiates the effect of olanzapine.
- C. Benztropine is used to control the side effects of olanzapine.
- D. The combined effect of these drugs will modify psychotic behavior.
Correct answer: C
Rationale: The correct answer is C because benztropine, an anticholinergic drug, is used to control extrapyramidal symptoms associated with olanzapine use. Choice A is incorrect because benztropine does not directly reduce olanzapine's side effect of urinary retention. Choice B is incorrect as benztropine does not potentiate the effect of olanzapine; its main role is to counteract extrapyramidal symptoms. Choice D is incorrect because the primary purpose of using benztropine alongside olanzapine is to manage side effects, not specifically to modify psychotic behavior.
2. 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.
3. What class of laxative would the nurse recommend to a patient asking about the best way to prevent constipation?
- A. Stimulant laxatives
- B. Bulk-forming laxatives
- C. Emollient laxatives
- D. Hyperosmotic laxatives
Correct answer: B
Rationale: The correct answer is B: Bulk-forming laxatives. These laxatives are recommended to prevent constipation because they work by absorbing liquid in the intestines, forming a bulky, soft stool that is easier to pass. They are safe and considered the most natural option. Stimulant laxatives (choice A) work by promoting bowel movements through intestinal contractions and are more suitable for treating occasional constipation rather than preventing it. Emollient laxatives (choice C) soften the stool by increasing the incorporation of water into the feces and are more suitable for patients who need to avoid straining during defecation. Hyperosmotic laxatives (choice D) work by drawing water into the intestine through osmosis and are typically used for more severe cases of constipation, not for prevention.
4. After receiving the third dose of a new oral anticoagulant prescription, which action should the nurse implement? Select all that apply.
- A. Notify the healthcare provider of the finding
- B. Provide a PRN NSAID for gum discomfort
- C. Review the most recent coagulation lab values
- D. Complete a medication variance report
Correct answer: C
Rationale: Reviewing the most recent coagulation lab values is crucial after receiving multiple doses of a new oral anticoagulant to ensure the patient is within the desired therapeutic range and to prevent adverse events related to over or under-anticoagulation. It is essential to monitor these values closely to adjust the dosage if needed. Notifying the healthcare provider of any concerning findings is important, but it may not be the immediate priority after receiving the third dose. Providing a PRN NSAID for gum discomfort is not typically indicated with oral anticoagulant therapy, as it may increase the risk of bleeding. Completing a medication variance report is more relevant in cases of medication errors or discrepancies, which may not apply in this scenario.
5. A client who is in the rehabilitation facility with newly diagnosed Parkinson's disease (PD) has levodopa-carbidopa prescribed. During the care planning session for this client, the nurse discusses which aspects with the other members of the health care team? (Select all that apply.)
- A. Ask the dietician to avoid increasing the amounts of foods high in Vitamin B6.
- B. Lessening of tremors
- C. Remind others on the team that this medication will not relieve all symptoms of PD.
- D. Ask the evening shift nurses to give the last dose earlier in the day if the client has insomnia.
Correct answer: D
Rationale: Levodopa-carbidopa is a medication commonly used in the treatment of Parkinson's disease (PD). It can cause side effects such as hypotension with sudden position changes. To assist the client in managing this side effect, the physical therapy assistant can help avoid sudden position changes. Additionally, if insomnia occurs, adjusting the timing of the last dose earlier in the day can be beneficial. It is important to note that drowsiness can also be a side effect of the medication and should be reported to the nurse. Foods high in Vitamin B6 can interfere with the absorption of levodopa-carbidopa; hence, it is advisable to avoid increasing the consumption of such foods. Lastly, it is crucial to remind the team that while this medication helps alleviate symptoms like tremors, it may not relieve all symptoms of PD comprehensively.
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