this is a chronic condition where the bronchial tubes in the lungs become inflamed and narrowed often caused by smoking
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Cardiovascular System Exam Questions And Answers

1. What is a chronic condition where the bronchial tubes in the lungs become inflamed and narrowed, often caused by smoking?

Correct answer: A

Rationale: Chronic bronchitis is the correct answer because it is a long-term condition characterized by inflammation and narrowing of the bronchial tubes in the lungs, commonly triggered by smoking. Emphysema involves damage to the air sacs in the lungs, not specifically the bronchial tubes. Asthma is a condition of reversible airway obstruction usually due to allergies or other triggers, not solely smoking. Tuberculosis is a bacterial infection that primarily affects the lungs but is not directly related to inflammation and narrowing of the bronchial tubes.

2. What is the procedure to remove a sample of tissue from the lung for examination under a microscope?

Correct answer: A

Rationale: The correct answer is A, lung biopsy. A lung biopsy involves removing a small sample of lung tissue for examination under a microscope to diagnose lung conditions. Choice B, bronchoscopy, is a procedure where a thin, flexible tube with a light and camera is inserted into the airways to view the lungs. This procedure is more for diagnostic purposes and not specifically for tissue removal. Choice C, thoracentesis, is a procedure to remove fluid from the pleural space around the lungs for diagnostic or therapeutic purposes, not for tissue biopsy. Choice D, lobectomy, is a surgical procedure to remove a lobe of the lung, usually done to treat conditions like lung cancer or severe infections, but it does not involve removing tissue for microscopic examination.

3. What test measures the electrical activity of the heart over a 24- or 48-hour period?

Correct answer: A

Rationale: The correct answer is A, Holter monitor. A Holter monitor is a portable device that continuously records the heart's electrical activity over 24 to 48 hours, aiding in the diagnosis of arrhythmias and other heart conditions. Choice B, an Electrocardiogram, provides a snapshot of the heart's electrical activity at a specific point in time, not over an extended period like a Holter monitor. Choice C, a Stress test, measures how the heart responds to physical activity and is not used for continuous monitoring of electrical activity. Choice D, a Chest X-ray, is used to visualize the structures of the chest, not to measure the heart's electrical activity.

4. A client on a beta blocker has a heart rate of 52 bpm. What is the nurse’s priority action?

Correct answer: A

Rationale: The correct answer is to hold the beta blocker and notify the healthcare provider. A heart rate of 52 bpm is low, and beta blockers can further decrease the heart rate, potentially causing harm. Therefore, withholding the medication and promptly informing the healthcare provider is crucial for further assessment and possible adjustment of the treatment plan. Administering the beta blocker as ordered (Choice B) can exacerbate the bradycardia. Increasing the dose of the beta blocker (Choice C) would further suppress the heart rate. Continuing to monitor the client and reassessing in 30 minutes (Choice D) might delay necessary interventions and increase the risk of complications in a client with a heart rate of 52 bpm.

5. Which condition is characterized by chest pain due to reduced blood flow to the heart muscle?

Correct answer: A

Rationale: The correct answer is A, Angina. Angina is chest pain or discomfort caused by reduced blood flow to the heart muscle, often due to coronary artery disease. Choice B, Myocardial infarction, involves the death of heart muscle tissue due to a lack of blood supply, presenting with symptoms similar to angina but more severe. Pericarditis (Choice C) is inflammation of the pericardium, the sac surrounding the heart, which may cause chest pain but is not primarily due to reduced blood flow. Arrhythmia (Choice D) refers to abnormal heart rhythms but is not directly related to chest pain due to reduced blood flow.

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