ATI RN
Cardiovascular System Exam Questions
1. The client is on nitroglycerin and reports chest pain. What is the nurse’s priority action?
- A. Administer nitroglycerin as ordered.
- B. Administer morphine as ordered.
- C. Administer aspirin as ordered.
- D. Notify the healthcare provider immediately.
Correct answer: D
Rationale: The correct answer is D: Notify the healthcare provider immediately. If a client on nitroglycerin reports chest pain, the priority action is to notify the healthcare provider immediately. This is crucial to ensure prompt reassessment of the client's condition and treatment plan. Administering nitroglycerin, morphine, or aspirin without consulting the healthcare provider first can be risky as the chest pain may indicate a need for a change in treatment or further evaluation. Administering medications without proper assessment and guidance can lead to complications and is not recommended in this scenario.
2. The nurse is caring for a client on warfarin with an INR of 5.2. What is the most appropriate action?
- A. Administer vitamin K as an antidote.
- B. Hold the next dose of warfarin.
- C. Increase the dose of warfarin.
- D. Monitor the client’s INR closely.
Correct answer: A
Rationale: An INR of 5.2 is elevated, indicating an increased risk of bleeding. Administering vitamin K can help reverse the effects of warfarin, which is the most appropriate action in this situation. Holding the next dose of warfarin is not enough to address the high INR, and increasing the dose would further elevate the INR level. Monitoring the INR closely is important, but in this case, immediate action is needed to counteract the anticoagulant effects of warfarin.
3. This term refers to a change in the inotropic state of the muscle without a change in myocardial fiber length.
- A. Contractility
- B. Excitability
- C. Refractoriness
- D. Automaticity
Correct answer: A
Rationale: The correct answer is A: Contractility. Contractility specifically refers to the change in the force of contraction of the heart muscle without changing its length. In this scenario, the focus is on the change in the inotropic state of the muscle, which directly relates to contractility. Choice B, Excitability, refers to the ability of a cell to respond to a stimulus, not specifically related to changes in contractile force. Choice C, Refractoriness, pertains to the period during which a cell is unresponsive to a new stimulus. Choice D, Automaticity, refers to the ability of cardiac cells to spontaneously generate electrical impulses.
4. What is a condition where the heart is unable to pump blood effectively, leading to a buildup of fluid in the lungs and other parts of the body?
- A. Heart failure
- B. Cardiomyopathy
- C. Myocardial infarction
- D. Pulmonary edema
Correct answer: A
Rationale: The correct answer is A: Heart failure. Heart failure occurs when the heart is unable to pump blood effectively, resulting in a buildup of fluid in the lungs and other parts of the body. Choice B, Cardiomyopathy, refers to diseases of the heart muscle, not specifically the inability to pump blood effectively. Choice C, Myocardial infarction, is a heart attack caused by a blocked blood supply to the heart muscle, not directly related to the heart's pumping efficiency. Choice D, Pulmonary edema, is a condition characterized by fluid accumulation in the lungs, often a consequence of heart failure but not the primary condition described in the question.
5. What is this surgical procedure that restores blood flow to the heart by diverting blood around a blocked artery?
- A. Coronary artery bypass graft (CABG)
- B. Angioplasty
- C. Stent placement
- D. Valve replacement
Correct answer: A
Rationale: The correct answer is A, Coronary artery bypass graft (CABG), which is a surgical procedure to improve blood flow to the heart by redirecting blood around blocked or narrowed arteries. This procedure is specifically designed to bypass blocked coronary arteries, allowing blood to flow more freely to the heart muscle. Choices B, C, and D are incorrect because angioplasty involves opening up narrowed or blocked blood vessels, stent placement involves inserting a mesh tube to keep arteries open, and valve replacement involves replacing a damaged heart valve - none of which directly address diverting blood flow around a blocked artery.
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