HESI LPN
Pharmacology HESI 55 Questions 2023
1. A client receiving enalapril reports a persistent dry cough. The nurse should explain that this side effect is related to which medication action?
- A. It reduces the production of angiotensin II.
- B. It increases the production of angiotensin II.
- C. It causes increased production of bradykinin.
- D. It increases the production of aldosterone.
Correct answer: C
Rationale: The correct answer is C. Enalapril, an ACE inhibitor, inhibits the conversion of angiotensin I to angiotensin II, leading to increased levels of bradykinin. The accumulation of bradykinin is responsible for the persistent dry cough associated with ACE inhibitors like enalapril. Choices A, B, and D are incorrect because enalapril does not directly affect the production of angiotensin II or aldosterone. Instead, it primarily impacts the renin-angiotensin-aldosterone system by inhibiting the conversion of angiotensin I to angiotensin II, leading to bradykinin accumulation.
2. A patient is prescribed sucralfate (Carafate) and asks the nurse what the purpose of taking this medication is. Which is the nurse's best response?
- A. The medication helps reduce bacteria levels in the stomach
- B. The medication helps neutralize gastric acid in the stomach
- C. The medication is used to protect the gastrointestinal mucosa
- D. The medication can reduce the patient's constipation
Correct answer: C
Rationale: The correct answer is C. Sucralfate (Carafate) is used to protect the gastrointestinal mucosa by forming a protective barrier over ulcers. This barrier helps prevent stomach acid from further damaging the ulcers and promotes healing. It does not directly reduce bacteria levels, neutralize gastric acid, or have a direct effect on constipation.
3. A client taking long-term steroids also has ranitidine prescribed. The nurse provides which explanation as to why these drugs are given together?
- A. Ranitidine reduces the risk of ulcers associated with steroids.
- B. Ranitidine decreases the risk of infection associated with steroids.
- C. Ranitidine decreases blood sugar elevations associated with steroids.
- D. Ranitidine reduces sodium retention associated with steroid usage.
Correct answer: A
Rationale: The correct answer is A. Ranitidine is prescribed with long-term steroids to reduce the risk of ulcers associated with steroid therapy. Although steroids can increase the risk of ulcers due to their effect on the gastrointestinal system, ranitidine works by reducing stomach acid production, thus helping to prevent ulcer formation. Choices B, C, and D are incorrect as ranitidine is not given to decrease the risk of infection, reduce blood sugar elevations, or reduce sodium retention associated with steroid usage.
4. A male client receives a scopolamine transdermal patch 2 hours before surgery. Four hours after surgery, the client tells the nurse that he is experiencing pain and asks why the patch is not working. Which action should the nurse take?
- A. Advise the client that the effects of the medication have worn off
- B. Explain that the medication is not given to relieve pain
- C. Check for the correct placement of the patch on the client
- D. Offer to apply a new transdermal patch to address the pain
Correct answer: B
Rationale: The correct answer is B. Scopolamine is not a pain medication; it is commonly used to prevent nausea and vomiting, particularly in surgical settings. It works on the central nervous system to help control these symptoms, not to relieve pain. Therefore, it is important for the nurse to explain to the client that the medication is not intended to relieve pain but rather to manage other specific symptoms. Checking the correct placement of the patch is also important to ensure proper administration, but addressing the misconception about the medication's purpose is the priority in this scenario. Offering to apply a new patch would not address the client's pain as scopolamine is not meant for pain relief. Advising the client that the effects have worn off is inaccurate because the medication is not used for pain management.
5. Twenty-four hours after starting to take oral penicillin for strep throat, a client calls the nurse to report the onset of a rash on the chest. What action should the nurse implement?
- A. Instruct the client to discontinue the penicillin immediately
- B. Instruct the client regarding the use of topical analgesic cream PRN
- C. Question the client about any other related symptoms
- D. Reinforce the need to take all doses of the penicillin
Correct answer: A
Rationale: In this scenario, the client has developed a rash after starting oral penicillin, which can indicate an allergic reaction. It is crucial for the nurse to instruct the client to discontinue the penicillin immediately. Continuing the medication can potentially lead to severe allergic reactions. Instructing about topical analgesic cream or questioning about other related symptoms may delay appropriate action in case of a severe allergic reaction. Reinforcing the need to complete all doses is not appropriate when an allergic reaction is suspected, as safety takes precedence over completing the antibiotic course.
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