ATI RN
ATI Pharmacology Proctored Exam 2019
1. A healthcare professional is caring for an older adult client who has a new prescription for Digoxin and takes multiple other medications. Which of the following medications, when used concurrently with Digoxin, 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 Digoxin toxicity. When these medications are used together, the client is at an increased risk. Phenytoin (Choice A) does not significantly impact digoxin levels. Warfarin (Choice C) and aluminum hydroxide (Choice D) do not directly increase the risk of Digoxin toxicity. Therefore, the correct choice is Verapamil (Choice B) due to its potential to raise digoxin levels and cause toxicity.
2. A client with active tuberculosis asks why he must take four different medications. Which of the following responses should the nurse make?
- A. Four medications decrease the risk of a severe allergic reaction.
- B. Four medications reduce the chance that the bacteria will become resistant.
- C. Four medications reduce the risk of adverse reactions.
- D. Four medications decrease the chance of having a positive tuberculin skin test.
Correct answer: B
Rationale: The correct answer is B. When treating tuberculosis, using a combination of medications is crucial to reduce the risk of bacteria developing resistance to any single drug. This approach helps prevent treatment failure and ensures successful treatment outcomes. Choice A is incorrect because the primary purpose of using multiple medications is not related to allergic reactions. Choice C is incorrect as the risk reduction is mainly focused on bacterial resistance rather than adverse reactions. Choice D is not relevant as the purpose of taking multiple medications is not to affect the tuberculin skin test results.
3. A client has a new prescription for Atorvastatin. Which of the following instructions should the nurse include?
- A. Avoid drinking grapefruit juice.
- B. Take the medication with your evening meal.
- C. Increase your intake of leafy green vegetables.
- D. Stop taking the medication if you experience muscle pain.
Correct answer: A
Rationale: The correct answer is A: 'Avoid drinking grapefruit juice.' Grapefruit juice should be avoided when taking Atorvastatin because it can increase the blood levels of the medication, potentially leading to a higher risk of adverse effects like muscle pain and liver damage. It is important to follow this instruction to ensure the safe and effective use of Atorvastatin. Choices B, C, and D are incorrect. Taking Atorvastatin with food, specifically a low-fat meal, is recommended, but it is not necessary to specify the evening meal. While increasing intake of leafy green vegetables is generally beneficial for health, it is not a specific instruction for Atorvastatin. Lastly, stopping the medication if one experiences muscle pain is not advisable without consulting a healthcare provider, as muscle pain can be a symptom of a serious side effect of Atorvastatin that requires medical attention.
4. A client has been prescribed Aspirin for prevention of cardiovascular disease. Which of the following findings indicates the medication is effective?
- A. The client has a decrease in troponin levels.
- B. The client has a regular heart rhythm.
- C. The client experiences a decrease in episodes of angina.
- D. The client's blood pressure remains stable.
Correct answer: C
Rationale: The correct answer is C. A decrease in episodes of angina is an indicator of Aspirin's effectiveness in preventing cardiovascular events. Aspirin works by inhibiting platelet aggregation, thereby reducing the formation of blood clots that could lead to angina episodes or more severe cardiovascular complications. Choices A, B, and D are incorrect because troponin levels, heart rhythm, and blood pressure are not direct indicators of Aspirin's effectiveness in preventing cardiovascular events.
5. A client is prescribed Atorvastatin. Which of the following laboratory values should be monitored to assess for potential adverse effects?
- A. Blood glucose
- B. Creatine kinase
- C. Hemoglobin
- D. Sodium
Correct answer: B
Rationale: Creatine kinase should be monitored in clients taking Atorvastatin as it can indicate muscle damage, a serious adverse effect of statins. Elevated creatine kinase levels may suggest myopathy or rhabdomyolysis, which are potential complications of statin therapy.
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