ATI RN
Cardiovascular System Exam Questions
1. What is a condition where the heart beats with an irregular or abnormal rhythm?
- A. Arrhythmia
- B. Hypertension
- C. Tachycardia
- D. Bradycardia
Correct answer: A
Rationale: Arrhythmia is the correct answer because it refers to an irregular or abnormal heart rhythm, which can cause the heart to beat too fast, too slow, or erratically. Hypertension (choice B) is high blood pressure and not directly related to irregular heart rhythm. Tachycardia (choice C) is a condition where the heart beats too quickly, not necessarily irregularly. Bradycardia (choice D) is a condition where the heart beats too slowly, not necessarily irregularly. Therefore, only arrhythmia (choice A) fits the description provided in the question.
2. What does the PR interval measure?
- A. Time it takes for the electrical impulse to travel from the atria to the ventricles
- B. Measurement of ventricular depolarization
- C. Duration of ventricular repolarization
- D. Segment representing the time between ventricular depolarization and repolarization
Correct answer: A
Rationale: The PR interval measures the time it takes for the electrical impulse to travel from the atria to the ventricles. It is crucial in diagnosing heart rhythm disorders, as abnormalities in this interval can indicate conduction abnormalities between the atria and ventricles. Choices B, C, and D are incorrect. The QRS complex represents ventricular depolarization, the QT interval represents the duration of ventricular repolarization, and the ST segment represents the time between ventricular depolarization and repolarization.
3. The client on clopidogrel (Plavix) should be monitored for which adverse effect?
- A. Bleeding
- B. Hypertension
- C. Tachycardia
- D. Bradycardia
Correct answer: A
Rationale: Correct! Clopidogrel (Plavix) is an antiplatelet medication that helps prevent blood clots. As a side effect, it can increase the risk of bleeding. Monitoring for signs of bleeding, such as easy bruising, blood in urine or stools, or prolonged bleeding from cuts, is crucial. Choices B, C, and D are incorrect as hypertension, tachycardia, and bradycardia are not typically associated with clopidogrel use.
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. 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.
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