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 a calcium channel blocker for angina. The nurse knows this medication should NOT be used with caution in combination with which drug classes?
- A. NSAIDs
- B. Cardiac glycosides
- C. Beta blockers
- D. None of the above
Correct answer: C
Rationale: Calcium channel blockers and beta blockers should be used with caution together because they can both suppress heart function, potentially leading to bradycardia, heart block, or heart failure. NSAIDs and cardiac glycosides do not have significant interactions with calcium channel blockers in the same way, so they are not typically a cause for concern when combined.
3. Which drug class has been found to decrease mortality if given within 8 hours of an MI due to a decrease in cardiac workload?
- A. Antiplatelets
- B. Beta-adrenergic blockers
- C. ACE inhibitors
- D. Calcium channel blockers
Correct answer: B
Rationale: Beta-adrenergic blockers have been shown to decrease mortality when administered within 8 hours of a myocardial infarction (MI). They do so by reducing cardiac workload, which helps improve outcomes post-MI. These drugs work by blocking the effects of adrenaline on the heart, leading to decreased heart rate, blood pressure, and myocardial oxygen demand, thereby protecting the heart muscle from further damage. This makes them a crucial part of the treatment regimen for acute coronary syndromes like MI.
4. The client asks the nurse about common side effects of calcium channel blockers. What should the nurse include in client teaching?
- A. Headache
- B. Constipation
- C. Epistaxis
- D. Dysuria
Correct answer: A
Rationale: One of the common side effects of calcium channel blockers is a headache. This is important information for the nurse to include in client teaching as it helps the client understand potential adverse effects of the medication. Constipation, epistaxis, and dysuria are not typically associated with calcium channel blockers.
5. Which drug classes are NOT typically used to treat angina?
- A. Calcium channel blockers
- B. Organic nitrates
- C. Alpha blockers
- D. Beta blockers
Correct answer: C
Rationale: Angina is primarily treated with calcium channel blockers, organic nitrates, and beta blockers. Alpha blockers are not commonly used in the treatment of angina. Calcium channel blockers help dilate blood vessels, decreasing the workload on the heart. Organic nitrates relax and widen blood vessels, improving blood flow and reducing the heart's workload. Beta blockers reduce the heart rate and blood pressure, decreasing the heart's demand for oxygen. Alpha blockers are more commonly used to treat conditions like hypertension and benign prostatic hyperplasia.
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