ATI RN
Cardiovascular System Exam Questions Pdf Questions
Question 1 of 5
What is a type of heart disease that involves the thickening or stiffening of the heart muscle, reducing its ability to pump blood?
Correct Answer: A
Rationale: Hypertrophic cardiomyopathy is a type of heart disease characterized by the thickening or stiffening of the heart muscle, leading to a reduced ability to pump blood. This condition is different from dilated cardiomyopathy (choice B), which involves the enlargement and weakening of the heart chambers. Restrictive cardiomyopathy (choice C) is characterized by the stiffening of the heart muscle, affecting its ability to fill with blood properly. Arrhythmia (choice D) refers to abnormal heart rhythms and is not specifically related to thickening or stiffening of the heart muscle, as seen in hypertrophic cardiomyopathy.
Question 2 of 5
Which term refers to the ability of the heart to initiate impulses repetitively and spontaneously?
Correct Answer: C
Rationale: The correct answer is C: Automaticity. Automaticity is the specific term used to describe the heart's ability to generate impulses repetitively and spontaneously. Contractility (A) refers to the ability of muscle fibers to contract, not the initiation of impulses. Excitability (B) is the ability of cells to respond to stimuli but is not specific to the heart's impulse generation. Rhythmicity (D) is a related term but does not specifically describe the heart's spontaneous impulse initiation.
Question 3 of 5
This is a procedure where a small mesh tube is inserted into an artery to keep it open and improve blood flow.
Correct Answer: A
Rationale: Stent placement is a procedure where a small mesh tube (stent) is inserted into an artery to keep it open and improve blood flow, often following angioplasty.
Question 4 of 5
The healthcare provider is monitoring a client on an ACE inhibitor. What lab value is most important to monitor?
Correct Answer: A
Rationale: The correct answer is A: Potassium. When a client is on an ACE inhibitor, it is crucial to monitor potassium levels because ACE inhibitors can lead to an increase in potassium, potentially causing hyperkalemia. Monitoring sodium levels (Choice B) is not as critical in this scenario. Creatinine levels (Choice C) are important for assessing kidney function but are not the most crucial lab value to monitor with ACE inhibitors. Calcium levels (Choice D) are not directly affected by ACE inhibitors and are not the priority for monitoring in this case.
Question 5 of 5
What is a condition where the heart's mitral valve does not close properly, causing blood to leak backward into the left atrium?
Correct Answer: A
Rationale: Mitral valve prolapse is the correct answer. It occurs when the mitral valve does not close properly, leading to blood leaking backward into the left atrium. This condition can manifest with symptoms such as palpitations and chest pain. Choices B, C, and D are incorrect because aortic stenosis involves narrowing of the aortic valve, mitral stenosis is the narrowing of the mitral valve, and tricuspid regurgitation is when blood leaks backward through the tricuspid valve.
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