Heart Failure Overview Quiz
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Questions and Answers

What is the primary issue in heart failure that affects the heart's ability to pump blood?

  • Overactive immune response
  • Increased heart rate excessively
  • Inadequate ability to contract and relax (correct)
  • Excessive oxygen delivery to tissues
  • Which condition is often a long-term effect that can lead to heart failure?

  • Acute respiratory distress syndrome
  • Chronic kidney disease
  • Pulmonary hypertension
  • Coronary heart disease (correct)
  • What compensatory mechanism does the body activate in response to decreased cardiac output (CO) in heart failure?

  • Increased vascular congestion (correct)
  • Enhanced oxygen utilization by tissues
  • Diminished blood pressure regulation
  • Decreased blood flow to vital organs
  • Which condition may result in heart failure without any prior history of abnormal myocardial function?

    <p>Massive pulmonary embolus</p> Signup and view all the answers

    Which of the following factors can result in damage to the heart muscle, potentially leading to heart failure?

    <p>Chronic high blood pressure</p> Signup and view all the answers

    How does very rapid tachycardia affect cardiac output (CO)?

    <p>It decreases CO due to reduced stroke volume.</p> Signup and view all the answers

    What is considered a normal range for ejection fraction?

    <p>50–70%</p> Signup and view all the answers

    Which of the following is NOT a determinant of stroke volume?

    <p>Heart rate</p> Signup and view all the answers

    What primary compensatory mechanism is associated with heart failure?

    <p>Myocardial hypertrophy</p> Signup and view all the answers

    What is the relationship between cardiac output (CO) and stroke volume (SV) in heart failure?

    <p>Both CO and SV decrease.</p> Signup and view all the answers

    Which of the following conditions is NOT listed as a cause of impaired myocardial function?

    <p>Hypertension</p> Signup and view all the answers

    What is the primary concern of acute pulmonary edema in heart failure?

    <p>Abnormal fluid accumulation in the lungs</p> Signup and view all the answers

    Which factor primarily influences heart rate during times of stress?

    <p>Autonomic nervous system</p> Signup and view all the answers

    How does hyperthyroidism contribute to heart failure?

    <p>By causing an overload of blood volume</p> Signup and view all the answers

    Which of the following describes the term 'cardiac reserve'?

    <p>The heart's ability to increase cardiac output in response to increased demand</p> Signup and view all the answers

    Which condition is directly associated with increased cardiac workload?

    <p>Congenital heart defects</p> Signup and view all the answers

    Which of the following is a sign of severe cardiac decompensation?

    <p>Cardiogenic pulmonary edema</p> Signup and view all the answers

    What role do catecholamines play in heart function during stress?

    <p>They enhance heart rate and increase stroke volume</p> Signup and view all the answers

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