ATI RN
Cardiovascular System Practice Exam
1. What procedure involves using a balloon to open a narrowed or blocked blood vessel, often followed by the placement of a stent?
- A. Angioplasty
- B. Valve replacement
- C. Coronary artery bypass graft (CABG)
- D. Endarterectomy
Correct answer: A
Rationale: The correct answer is A, Angioplasty. Angioplasty is a procedure that uses a balloon to open a narrowed or blocked blood vessel, often followed by the placement of a stent to maintain vessel patency. Choice B, Valve replacement, involves replacing damaged heart valves, not treating narrowed blood vessels. Choice C, Coronary artery bypass graft (CABG), is a procedure to bypass blocked coronary arteries, not directly open them using a balloon. Choice D, Endarterectomy, is a surgical procedure to remove plaque from the inner lining of an artery, not involving the use of a balloon and stent to open a vessel.
2. What is a genetic disorder that affects the lungs and digestive system, leading to thick, sticky mucus that can clog the airways?
- A. Cystic fibrosis
- B. COPD
- C. Bronchiectasis
- D. Pulmonary fibrosis
Correct answer: A
Rationale: The correct answer is A, cystic fibrosis. Cystic fibrosis is a genetic disorder that primarily affects the lungs and digestive system. It leads to the production of thick, sticky mucus that can clog the airways, causing respiratory issues. Choice B, COPD (Chronic Obstructive Pulmonary Disease), is a different condition usually caused by smoking or exposure to irritants. Choice C, bronchiectasis, involves the widening and scarring of the airways, not the production of thick mucus. Choice D, pulmonary fibrosis, is a lung disease characterized by scarring of the lung tissue, not excessive mucus production.
3. The client is on hydrochlorothiazide and digoxin. What effect can the nurse expect?
- A. Hydrochlorothiazide increases digoxin levels.
- B. Hydrochlorothiazide decreases digoxin levels.
- C. Hydrochlorothiazide decreases potassium, increasing the risk of digoxin toxicity.
- D. Digoxin can increase the effectiveness of hydrochlorothiazide.
Correct answer: C
Rationale: The correct answer is C. Hydrochlorothiazide is a diuretic that can decrease potassium levels, which in turn can increase the risk of digoxin toxicity. Digoxin typically doesn't impact hydrochlorothiazide levels or effectiveness, making choices A, B, and D incorrect. Choice A stating that hydrochlorothiazide increases digoxin levels is inaccurate. Choice B suggesting that hydrochlorothiazide decreases digoxin levels is also incorrect. Choice D, stating that digoxin can increase the effectiveness of hydrochlorothiazide, is not a typical interaction seen between these medications.
4. Which condition is characterized by the narrowing or blockage of arteries that supply blood to the heart by plaque?
- A. Coronary artery disease (CAD)
- B. Atherosclerosis
- C. Peripheral artery disease
- D. Congestive heart failure
Correct answer: A
Rationale: The correct answer is A, Coronary artery disease (CAD). CAD specifically refers to the condition where the arteries supplying blood to the heart become narrowed or blocked by plaque buildup. Choice B, Atherosclerosis, is a general term for the hardening and narrowing of arteries due to plaque buildup but does not specifically mention the heart. Choice C, Peripheral artery disease, involves narrowing of arteries that supply blood to areas other than the heart. Choice D, Congestive heart failure, is a condition where the heart is unable to pump blood effectively but is not primarily caused by narrowed or blocked arteries.
5. What test measures the pressure in the arteries during the contraction and relaxation of the heart?
- A. Blood pressure test
- B. Electrocardiogram (ECG or EKG)
- C. Spirometry
- D. Pulse oximetry
Correct answer: A
Rationale: The correct answer is 'Blood pressure test.' This test measures the pressure in the arteries during the contraction (systolic) and relaxation (diastolic) phases of the heart, providing important information about heart health. Choice B, 'Electrocardiogram (ECG or EKG),' records the heart's electrical activity and is not specifically related to measuring arterial pressure. Choice C, 'Spirometry,' assesses lung function by measuring airflow. Choice D, 'Pulse oximetry,' measures oxygen saturation in the blood, not arterial pressure.
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