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Cardiovascular System Exam Questions Pdf
1. What procedure involves inserting a needle into the pleural space to remove excess fluid and help the patient breathe more easily?
- A. Thoracentesis
- B. Bronchoscopy
- C. Spirometry
- D. Arterial blood gas (ABG)
Correct answer: A
Rationale: Thoracentesis is the correct answer. It is a procedure where a needle is inserted into the pleural space to remove excess fluid, aiding in easier breathing. Bronchoscopy (Choice B) is a procedure to visualize the airways and diagnose lung problems, not specifically for fluid drainage. Spirometry (Choice C) is a test to measure lung function, not a procedure for fluid removal. Arterial blood gas (ABG) (Choice D) is a blood test to assess oxygen and carbon dioxide levels in the blood, not a procedure for draining fluid from the pleural space.
2. What is a condition where the blood supply to part of the brain is interrupted or reduced, preventing brain tissue from getting oxygen and nutrients?
- A. Stroke
- B. Heart attack
- C. Pulmonary embolism
- D. Pneumonia
Correct answer: A
Rationale: A stroke occurs when the blood supply to part of the brain is interrupted or reduced, leading to brain cell death and potential disability. Choice B, a heart attack, involves a blockage in the blood vessels that supply the heart muscle. Choice C, a pulmonary embolism, is a blockage in one of the pulmonary arteries in the lungs. Choice D, pneumonia, is an infection that inflames the air sacs in one or both lungs.
3. Which surgical procedure involves grafting a blood vessel to bypass a blocked artery in the heart?
- A. Coronary artery bypass graft (CABG)
- B. Valve replacement
- C. Stent placement
- D. Angioplasty
Correct answer: A
Rationale: The correct answer is A, Coronary artery bypass graft (CABG). This surgical procedure involves grafting a blood vessel to bypass a blocked coronary artery, improving blood flow to the heart muscle. Choice B, Valve replacement, is a procedure to replace a damaged heart valve and is not directly related to bypassing blocked arteries. Choice C, Stent placement, involves inserting a mesh tube to keep blocked arteries open and is different from grafting a blood vessel. Choice D, Angioplasty, is a procedure to widen narrowed or blocked arteries, typically using a balloon catheter, and does not involve grafting a blood vessel.
4. Which test measures how well the lungs work by assessing the amount of air the lungs can hold and how quickly air can be exhaled?
- A. Spirometry
- B. Pulse oximetry
- C. Arterial blood gas (ABG)
- D. Chest X-ray
Correct answer: A
Rationale: The correct answer is A, Spirometry. Spirometry is a pulmonary function test that evaluates lung function by measuring the amount of air a person can exhale and how quickly, assisting in the diagnosis of conditions such as asthma and COPD. Choices B, C, and D are incorrect because Pulse oximetry measures oxygen saturation in the blood, Arterial blood gas (ABG) evaluates blood pH, oxygen, and carbon dioxide levels, and a Chest X-ray provides an image of the lungs but does not measure lung function.
5. The nurse is administering digoxin to a client. What is the most important parameter to check before administration?
- A. Heart rate
- B. Blood pressure
- C. Respiratory rate
- D. Oxygen saturation
Correct answer: A
Rationale: The correct answer is A: Heart rate. Before administering digoxin, it is crucial to check the client's heart rate because digoxin can cause bradycardia, making it essential to ensure the heart rate is within the appropriate range. Blood pressure, respiratory rate, and oxygen saturation are also important parameters to monitor in a clinical setting, but when administering digoxin, the focus should primarily be on the heart rate due to its potential effects on cardiac function.
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