ATI RN
ATI Pharmacology Proctored Exam 2019
1. An older adult client has a new prescription for Digoxin and takes multiple other medications. The nurse should recognize that concurrent use of which of the following medications places the client at risk for Digoxin toxicity?
- A. Phenytoin
- B. Verapamil
- C. Warfarin
- D. Aluminum hydroxide
Correct answer: B
Rationale: Verapamil, a calcium-channel blocker, can increase digoxin levels, leading to toxicity. When given together, the digoxin dosage may need adjustment, and the nurse should closely monitor the client's digoxin levels to prevent toxicity symptoms such as nausea, vomiting, visual disturbances, and arrhythmias. The other choices, Phenytoin, Warfarin, and Aluminum hydroxide, do not significantly interact with Digoxin to cause toxicity. Phenytoin may reduce Digoxin levels, while Warfarin and Aluminum hydroxide have minimal interactions with Digoxin.
2. How can the nurse best explain the difference between angina and a myocardial infarction to a client presenting with severe chest pain?
- A. “Angina usually resolves with rest, and is rarely fatal, while a myocardial infarction necessitates immediate treatment and can be life-threatening.”
- B. “There is a clear distinction between the two. You will receive treatment based on the diagnosis of a myocardial infarction.”
- C. “Both conditions result from a clot obstructing the coronary arteries. Angina occurs with the blockage of a small vessel, whereas a myocardial infarction occurs with a blockage of a large vessel.”
- D. “Angina may not cause as intense chest pain, whereas a myocardial infarction always presents with severe chest pain.”
Correct answer: A
Rationale: When educating a client about the differences between angina and a myocardial infarction, it is crucial to emphasize key distinguishing factors. Angina typically improves with rest and is not usually life-threatening, whereas a myocardial infarction requires urgent intervention as it can be life-threatening. This explanation helps the client understand the urgency and severity associated with a myocardial infarction compared to angina.
3. A client has a new prescription for Losartan. Which of the following client statements indicates an understanding of the teaching?
- A. I will increase my intake of potassium-rich foods.
- B. I will take the medication with a full glass of milk.
- C. I should monitor my blood pressure weekly.
- D. I will take the medication every other day.
Correct answer: C
Rationale: The correct answer is C: 'I should monitor my blood pressure weekly.' Monitoring blood pressure regularly is crucial for clients taking Losartan, an angiotensin II receptor blocker, to ensure effective management of hypertension. This medication works to dilate blood vessels, lowering blood pressure, so monitoring is essential to assess its effectiveness. Choices A, B, and D are incorrect because increasing potassium-rich foods can be harmful due to the potassium-sparing effect of Losartan, taking the medication with milk is not recommended, and adherence to the prescribed daily dosing schedule is necessary for optimal therapeutic outcomes.
4. A client has a new prescription for Metformin. Which of the following adverse effects of Metformin should the nurse instruct the client to report to the provider?
- A. Somnolence
- B. Constipation
- C. Fluid retention
- D. Weight gain
Correct answer: A
Rationale: The correct answer is A: Somnolence. Somnolence can indicate lactic acidosis, a rare but serious adverse effect of Metformin. Lactic acidosis is manifested by extreme drowsiness, hyperventilation, and muscle pain. Clients should be instructed to report these symptoms to their healthcare provider promptly to prevent further complications.
5. A client with a UTI and a history of recurrent infections asks why the provider has not yet prescribed an antibiotic. The nurse should explain that the provider has to wait for the results of which of the following laboratory tests to identify which antibiotic to prescribe?
- A. Gram stain
- B. Culture
- C. Sensitivity
- D. Specific gravity
Correct answer: C
Rationale: In the case of a UTI, a sensitivity test is crucial as it identifies the most effective antibiotic to target the specific microorganism causing the infection. This test helps in prescribing the appropriate antibiotic for successful treatment and preventing antibiotic resistance. While a Gram stain and culture are important in diagnosing a UTI, the sensitivity test specifically determines the most suitable antibiotic. Specific gravity, on the other hand, is not related to identifying the appropriate antibiotic for a UTI.
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