this refers to high blood pressure a condition where the force of the blood against the artery walls is too high
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ATI RN

Physical Exam Cardiovascular System

1. Which term refers to high blood pressure, a condition where the force of the blood against the artery walls is too high?

Correct answer: A

Rationale: The correct answer is A, Hypertension. Hypertension is a condition characterized by persistently high blood pressure, which increases the risk of heart disease and stroke. Choice B, Hypotension, refers to low blood pressure. Choice C, Hyperlipidemia, is the term for high levels of fats in the blood. Choice D, Diabetes, is a condition characterized by high blood sugar levels.

2. Which condition is caused by a bacterium that primarily affects the lungs but can spread to other parts of the body?

Correct answer: A

Rationale: The correct answer is A, Tuberculosis. Tuberculosis is an infectious disease caused by Mycobacterium tuberculosis, primarily affecting the lungs but can spread to other organs. Choice B, Pneumonia, is an infection that inflames the air sacs in one or both lungs. Choice C, Legionnaires' disease, is a severe form of pneumonia caused by the Legionella bacteria. Choice D, Histoplasmosis, is a fungal infection caused by inhaling spores of the Histoplasma capsulatum fungus.

3. 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.

4. What is the approximate stroke volume of the heart?

Correct answer: B

Rationale: The correct answer is B: Approximately 70 mL of blood per beat. The stroke volume of the heart is typically around 70 mL, indicating the volume of blood ejected from the left ventricle with each contraction. Choices A, C, and D are incorrect as they do not represent the standard approximate stroke volume of the heart, which is around 70 mL per beat.

5. What condition involves the heart's electrical system malfunctioning, causing very fast heartbeats originating from the ventricles?

Correct answer: A

Rationale: Ventricular tachycardia is the correct answer. It is a condition characterized by the heart's electrical system malfunctioning, leading to very fast heartbeats originating from the ventricles. Ventricular tachycardia can be life-threatening as it may progress to ventricular fibrillation, causing cardiac arrest. Atrial fibrillation (choice B) involves rapid, irregular beating of the atria, not the ventricles. Supraventricular tachycardia (choice C) originates above the ventricles and does not involve ventricular malfunction. Bradycardia (choice D) is the opposite of tachycardia, characterized by an abnormally slow heart rate.

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