ATI RN
ATI Pharmacology Proctored Exam 2023
1. A client has a new prescription for Warfarin. Which of the following herbal supplements should the client be instructed to avoid?
- A. St. John's wort
- B. Echinacea
- C. Garlic
- D. Ginseng
Correct answer: A
Rationale: St. John's wort should be avoided by clients taking Warfarin as it can reduce the medication's effectiveness by affecting its metabolism. Echinacea, garlic, and ginseng are also known to interact with Warfarin, either by increasing the risk of bleeding or altering its anticoagulant effects. However, St. John's wort is particularly significant due to its potent enzyme-inducing properties that can lead to subtherapeutic levels of Warfarin, potentially increasing the risk of blood clots.
2. A client is being taught about a new prescription for Celecoxib. Which of the following information should be included in the teaching?
- A. Increases the risk for a myocardial infarction
- B. Decreases the risk of stroke
- C. Inhibits COX-1
- D. Increases platelet aggregation
Correct answer: A
Rationale: The correct answer is A: 'Increases the risk for a myocardial infarction.' Celecoxib, a COX-2 inhibitor, increases the risk for a myocardial infarction due to its effect on suppressing vasodilation, which can lead to this adverse cardiovascular event. Choices B, C, and D are incorrect. Celecoxib does not decrease the risk of stroke, inhibit COX-1, or increase platelet aggregation. It's crucial for the nurse to educate the client about the increased risk for a myocardial infarction when taking Celecoxib and emphasize monitoring for signs of heart issues and the importance of seeking prompt medical attention if symptoms occur.
3. A client has a new prescription for Enalapril. Which of the following adverse effects should the nurse instruct the client to monitor?
- A. Dry cough.
- B. Hyperglycemia.
- C. Weight gain.
- D. Increased urination.
Correct answer: A
Rationale: The correct answer is A: Dry cough. A common adverse effect of Enalapril, an ACE inhibitor, is a persistent dry cough. This occurs due to the accumulation of bradykinin. It is essential for the client to monitor for this side effect and report it to their healthcare provider promptly. Choices B, C, and D are incorrect because hyperglycemia, weight gain, and increased urination are not typically associated with Enalapril use.
4. A client has a new prescription for Levothyroxine. Which of the following instructions should the nurse include?
- A. Take this medication with food.
- B. Take this medication at bedtime.
- C. Take this medication on an empty stomach.
- D. Take this medication with antacids.
Correct answer: C
Rationale: Levothyroxine should be taken on an empty stomach to increase absorption and efficacy. Taking it with food or antacids can interfere with its absorption, affecting the medication's effectiveness.
5. A client with Hodgkin's disease is receiving Cyclophosphamide IV. Which medication should be administered concurrently to prevent an adverse effect of Cyclophosphamide?
- A. Uroprotectant agent, such as mesna
- B. Opioid, such as morphine
- C. Loop diuretic, such as furosemide
- D. H1 receptor antagonist, such as diphenhydramine
Correct answer: A
Rationale: Mesna, an uroprotectant agent, is administered with nitrogen mustard chemotherapy drugs like Cyclophosphamide to prevent hemorrhagic cystitis, a common adverse effect. Mesna works by binding to and inactivating the toxic metabolites of Cyclophosphamide in the bladder, thereby reducing the risk of bladder toxicity.
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