ATI RN
Cardiovascular System Practice Exam
1. The nurse is giving a client an IV bolus of heparin. What is the most important nursing action?
- A. Monitor the client's heart rate.
- B. Check the client's blood pressure.
- C. Check for signs of bleeding.
- D. Monitor the client's respiratory rate.
Correct answer: A
Rationale: When administering an IV bolus of heparin, the most important nursing action is to monitor the client's heart rate. Heparin can cause bradycardia as a side effect, making it crucial to assess the heart rate for any abnormalities. Checking the blood pressure (Choice B) is important but not as critical as monitoring the heart rate. While checking for signs of bleeding (Choice C) is essential, it is not the most crucial action when administering heparin. Monitoring the respiratory rate (Choice D) is also important but not as directly related to the potential side effects of heparin as monitoring the heart rate.
2. A client on an ACE inhibitor reports a persistent cough. What is the nurse’s best response?
- A. Reassure the client that the cough is a common side effect and is usually not serious.
- B. Instruct the client to report the cough to the healthcare provider as it may require discontinuation of the medication.
- C. Advise the client to use a humidifier at night to relieve the cough.
- D. Suggest the client take an over-the-counter cough suppressant.
Correct answer: B
Rationale: The correct answer is B. A persistent cough in a client on an ACE inhibitor may indicate a serious side effect that requires discontinuation of the medication. Instructing the client to report the cough to the healthcare provider is essential for proper evaluation and management. Choice A is incorrect because simply reassuring the client may delay necessary action. Choice C is incorrect as using a humidifier may not address the underlying cause of the cough. Choice D is incorrect because taking a cough suppressant without healthcare provider guidance may mask symptoms without addressing the cause.
3. Which condition refers to the heart being unable to pump sufficient blood to meet the body's needs?
- A. Heart failure
- B. Myocardial infarction
- C. Cardiomyopathy
- D. Pericarditis
Correct answer: A
Rationale: The correct answer is A, heart failure. This condition occurs when the heart can't pump enough blood to fulfill the body's requirements. Myocardial infarction (choice B) is the medical term for a heart attack, which is caused by a blockage in the coronary arteries. Cardiomyopathy (choice C) is a disease of the heart muscle that makes it harder for the heart to pump blood. Pericarditis (choice D) is the inflammation of the pericardium, the thin sac-like membrane surrounding the heart, and does not specifically involve the heart's inability to pump sufficient blood.
4. What is an infection that causes inflammation in the air sacs of one or both lungs, which may fill with fluid or pus?
- A. Pneumonia
- B. Tuberculosis
- C. Pleurisy
- D. Pulmonary edema
Correct answer: A
Rationale: The correct answer is A, Pneumonia. Pneumonia is an infection that inflames the air sacs in one or both lungs, which may fill with fluid or pus, causing symptoms like cough, fever, chills, and difficulty breathing. Tuberculosis (B) is a bacterial infection that primarily affects the lungs but is caused by a different bacterium. Pleurisy (C) is inflammation of the tissues that line the lungs and chest cavity, not the air sacs. Pulmonary edema (D) is a condition where fluid accumulates in the lungs' air sacs but is often due to heart problems rather than an infection.
5. This test measures the amount of blood the heart pumps with each beat, often used to assess heart function.
- A. Ejection fraction
- B. Cardiac output
- C. Stroke volume
- D. End-diastolic volume
Correct answer: A
Rationale: The correct answer is A: Ejection fraction. Ejection fraction is a measure of the percentage of blood that is pumped out of the left ventricle with each beat, used to assess heart function. Choice B, Cardiac output, is the total volume of blood pumped by the heart per minute and is not specific to each beat. Choice C, Stroke volume, is the amount of blood ejected by the heart in one contraction but does not specify the percentage of blood pumped out. Choice D, End-diastolic volume, is the volume of blood in the ventricle just before it contracts and does not directly measure the blood pumped with each beat.
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