Cardiovascular System Exam

Cardiovascular System Exam Related

Review Cardiovascular System Exam related questions and content

Which of the following conditions is characterized by inflammation of the heart muscle, often due to a viral infection, leading to impaired heart function?

  • A. Myocarditis
  • B. Endocarditis
  • C. Pericarditis
  • D. Cardiomyopathy
Correct Answer: A

Rationale: Myocarditis is the correct answer because it specifically refers to inflammation of the heart muscle often caused by a viral infection, leading to impaired heart function. It directly addresses the condition described in the question. Endocarditis is inflammation of the inner lining of the heart chambers and valves, not the heart muscle. Pericarditis is inflammation of the outer lining of the heart, not the heart muscle. Cardiomyopathy is a general term for diseases of the heart muscle that impair its ability to pump blood, but it does not specifically mention inflammation caused by viral infections.

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Which of the following is the result of central nervous system manifestations?

  • A. Congestive heart failure
  • B. Chorea
  • C. Valve damage
  • D. Pericarditis
Correct Answer: B

Rationale: Chorea, a neurological condition, can be associated with rheumatic fever affecting the central nervous system.

What is the ability of cardiac cells to generate an electrical impulse without being stimulated by an external source?

  • A. Automaticity
  • B. Contractility
  • C. Conductivity
  • D. Refractoriness
Correct Answer: A

Rationale: Automaticity is the ability of cardiac cells to generate an electrical impulse spontaneously without external stimulation. It is a fundamental property of specialized cardiac cells like pacemaker cells. Contractility refers to the ability of muscle cells to contract in response to an electrical stimulus. Conductivity is the ability of cardiac cells to transmit electrical impulses. Refractoriness is the period during which cardiac cells are unable to respond to a new stimulus. Therefore, in this context, the correct answer is A: Automaticity.

Nurse's role in hemodynamic monitoring.

  • A. Data collection
  • B. Interpretation
  • C. Both A and B
  • D. None of the above
Correct Answer: C

Rationale: Nurses collect data and interpret findings to guide interventions.

What is an acute respiratory infection that inflames the alveoli in one or both lungs, causing them to fill with fluid or pus?

  • A. Pneumonia
  • B. Bronchitis
  • C. Tuberculosis
  • D. Asthma
Correct Answer: A

Rationale: The correct answer is A: Pneumonia. Pneumonia is an acute respiratory infection that specifically inflames the alveoli in the lungs, leading to fluid or pus accumulation. This condition can affect one or both lungs. Bronchitis (B) is inflammation of the bronchial tubes, not the alveoli. Tuberculosis (C) is a bacterial infection that primarily affects the lungs but does not always involve alveoli inflammation. Asthma (D) is a chronic respiratory condition characterized by airway inflammation and constriction, not alveoli inflammation like in pneumonia.

Which heart chamber receives venous blood returning to the heart via the superior and inferior vena cava?

  • A. Right atrium
  • B. Left atrium
  • C. Right ventricle
  • D. Left ventricle
Correct Answer: A

Rationale: The correct answer is A: Right atrium. The right atrium receives venous blood returning to the heart via the superior and inferior vena cava. Blood from the body enters the right atrium through the vena cavae, then flows into the right ventricle and eventually gets pumped to the lungs for oxygenation. Choices B, C, and D are incorrect because the left atrium receives oxygenated blood from the lungs, the right ventricle pumps blood to the lungs, and the left ventricle pumps oxygenated blood to the rest of the body.

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