ATI RN
Pharmacology ATI Proctored Exam 2023
1. A client asks the nurse to explain the difference between stable and unstable angina. What is the best response by the nurse?
- A. "Stable angina is predictable in its frequency, intensity, and duration. Unstable angina is when angina episodes become more frequent or severe, and occur during periods of rest."?
- B. "Unstable angina is caused by spasms of the coronary arteries. Stable angina is when angina episodes become more frequent or severe, and occur during periods of rest."?
- C. "Unstable angina is predictable in its frequency, intensity, and duration. Stable angina is when angina episodes become more frequent or severe, and occur during periods of rest."?
- D. "Stable angina is caused by spasms of the coronary arteries. Unstable angina is when angina episodes become more frequent or severe, and occur during periods of rest."?
Correct answer: A
Rationale: Stable angina is typically triggered by physical exertion or emotional stress and is predictable in its frequency, intensity, and duration. In contrast, unstable angina is characterized by angina episodes that are unexpected, more severe, prolonged, and can occur at rest. Understanding these differences can help healthcare providers assess and manage angina episodes effectively, ensuring appropriate interventions are implemented promptly based on the type of angina present.
2. A client has been prescribed Phenelzine for depression. Which of the following indicates that the client has developed an adverse effect of this medication?
- A. Orthostatic hypotension
- B. Hearing loss
- C. Gastrointestinal bleeding
- D. Weight loss
Correct answer: A
Rationale: Orthostatic hypotension is a known adverse effect of Phenelzine, a monoamine oxidase inhibitor (MAOI) used for depression. It is caused by a sudden drop in blood pressure when changing positions, leading to symptoms like dizziness or fainting. Monitoring for orthostatic hypotension is crucial during Phenelzine therapy to prevent complications. Choices B, C, and D are incorrect because hearing loss, gastrointestinal bleeding, and weight loss are not typically associated with Phenelzine use.
3. A healthcare provider is reviewing the medical history of a client who is scheduled for surgery and takes Warfarin daily. Which of the following laboratory results should the healthcare provider monitor?
- A. Potassium level
- B. INR
- C. BUN
- D. Platelet count
Correct answer: B
Rationale: The INR (International Normalized Ratio) is the most important lab value to monitor in a client taking warfarin. Warfarin is an anticoagulant, and the INR reflects the effectiveness of anticoagulation therapy. Monitoring the INR helps ensure the client is within the therapeutic range to prevent both clotting and bleeding complications.
4. A healthcare professional in a provider's clinic is caring for a client who reports erectile dysfunction and requests a prescription for sildenafil. Which of the following medications currently prescribed for the client is a contraindication to taking sildenafil?
- A. Isosorbide
- B. Phenytoin
- C. Metronidazole
- D. Prednisone
Correct answer: A
Rationale: Sildenafil is contraindicated with nitrates like isosorbide due to the risk of severe hypotension. Isosorbide is a nitrate that can potentiate the hypotensive effects of sildenafil, leading to a dangerous drop in blood pressure. Therefore, it is essential to avoid concurrent use of isosorbide and sildenafil to prevent adverse effects. Phenytoin, metronidazole, and prednisone do not have significant interactions with sildenafil and are not contraindicated when used together.
5. When educating a client with a new prescription for Losartan, which instruction should the nurse provide?
- A. Avoid consuming grapefruit juice.
- B. Take this medication with a full glass of water.
- C. Take this medication with food.
- D. Monitor for signs of dehydration.
Correct answer: D
Rationale: The correct answer is to instruct the client to monitor for signs of dehydration when taking Losartan. Losartan can lead to dehydration, so it is crucial for the client to watch out for symptoms like dry mouth, increased thirst, and reduced urine output. Monitoring for these signs can help prevent complications associated with dehydration while taking this medication. Choices A, B, and C are incorrect because Losartan is not known to have interactions with grapefruit juice, does not require a specific amount of water for intake, and can be taken with or without food.
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