ATI RN
Cardiovascular System Practice Exam
1. What is a condition where the blood pressure in the arteries is consistently too high, increasing the risk of heart disease and stroke?
- A. Hypertension
- B. Hypotension
- C. Diabetes
- D. Hyperlipidemia
Correct answer: A
Rationale: Hypertension, also known as high blood pressure, is a condition where the force of the blood against the artery walls is consistently too high. This increased pressure can lead to serious health issues such as heart disease and stroke. Hypotension (choice B) refers to low blood pressure, which is not the correct term in this context. Diabetes (choice C) and hyperlipidemia (choice D) are also serious conditions but are not specifically characterized by consistently high blood pressure.
2. What test measures the electrical activity of the heart over a period of time, typically 24 to 48 hours?
- A. Holter monitor
- B. Echocardiogram
- C. Stress test
- D. Arterial blood gas (ABG)
Correct answer: A
Rationale: The correct answer is A, Holter monitor. A Holter monitor is a portable device that records the electrical activity of the heart over a period of 24 to 48 hours. It is used to detect arrhythmias and other heart conditions. Choice B, Echocardiogram, is a test that uses sound waves to create images of the heart's structure and function, not focused on the electrical activity. Choice C, Stress test, evaluates the heart's function under stress but does not monitor electrical activity over an extended period. Choice D, Arterial blood gas (ABG), measures the levels of oxygen and carbon dioxide in the blood, unrelated to measuring the electrical activity of the heart over time.
3. Which surgical procedure involves removing a portion of the lung?
- A. Lobectomy
- B. Pneumonectomy
- C. Tracheostomy
- D. Bronchoscopy
Correct answer: A
Rationale: A lobectomy is the surgical removal of a lobe of the lung. This procedure is commonly performed to treat conditions like lung cancer or severe lung diseases. Pneumonectomy involves removing an entire lung, making it incorrect. Tracheostomy is a surgical procedure to create an opening in the windpipe, not involving lung tissue removal. Bronchoscopy is a diagnostic procedure that allows visualization of the airways using a thin, flexible tube with a camera, not involving lung tissue removal.
4. What is a condition where the pulmonary arteries become blocked by a blood clot, leading to chest pain, shortness of breath, and other symptoms?
- A. Pulmonary embolism
- B. Pneumothorax
- C. Pulmonary edema
- D. Pulmonary hypertension
Correct answer: A
Rationale: The correct answer is A, pulmonary embolism. Pulmonary embolism is a condition where a blood clot blocks one of the pulmonary arteries in the lungs, resulting in symptoms like chest pain, shortness of breath, and other related signs. Choices B, C, and D are incorrect because pneumothorax refers to a collapsed lung, pulmonary edema is the build-up of fluid in the lungs, and pulmonary hypertension is high blood pressure in the arteries of the lungs - none of which directly involve a blood clot blocking the pulmonary arteries.
5. The nurse is giving the client digoxin for heart failure and recognizes that the drug has what type of effect on the heart?
- A. Negative inotropic, negative chronotropic effect
- B. Positive inotropic, negative chronotropic effect
- C. Negative inotropic, positive chronotropic effect
- D. Positive inotropic, positive chronotropic effect
Correct answer: B
Rationale: The correct answer is B: Positive inotropic, negative chronotropic effect. Digoxin strengthens the heart muscle, providing a positive inotropic effect, which increases the force of contraction. It also decreases the heart rate, having a negative chronotropic effect. Choice A is incorrect because digoxin has a positive inotropic effect, not a negative inotropic effect. Choice C is incorrect as digoxin does not have a positive chronotropic effect but a negative one. Choice D is incorrect because while digoxin has a positive inotropic effect, it does not have a positive chronotropic effect.
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