Rangos cardiovascular: volumen de sangue per bate impulse e taxa de corazon
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Questions and Answers

What is the normal range for stroke volume during maximal exercise in untrained individuals?

  • 60-100 beats/minute
  • 160-200+ mL/beat
  • 50-70 mL/beat
  • 100-120 mL/beat (correct)

What is the normal range for heart rate at rest in trained individuals?

  • 60-100 beats/minute
  • 160-200+ mL/beat
  • 50-90 beats/minute (correct)
  • 100-120 mL/beat

What is the normal range for stroke volume at rest in trained individuals?

  • 60-100 beats/minute
  • 160-200+ mL/beat
  • 50-70 mL/beat
  • 100-120 mL/beat (correct)

What is the normal range for heart rate during maximal exercise in trained individuals?

<p>160-200+ beats/minute (A)</p> Signup and view all the answers

What is the normal range for stroke volume during maximal exercise in trained individuals?

<p>160-200+ mL/beat (A)</p> Signup and view all the answers

Which marker is considered the gold standard for measuring cardiorespiratory fitness?

<p>Maximal oxygen consumption (VO2max) (D)</p> Signup and view all the answers

What does a higher VO2max value indicate about cardiorespiratory fitness?

<p>Better fitness level (A)</p> Signup and view all the answers

What does arterial oxygen saturation (SaO2) measure?

<p>Percentage of oxygen bound to hemoglobin molecules in blood samples (A)</p> Signup and view all the answers

When is SaO2 usually expressed as a percentage?

<p>At rest (B)</p> Signup and view all the answers

What is ejection fraction (EF) a marker of in the context of cardiorespiratory health?

<p>Heart's ability to pump blood efficiently (A)</p> Signup and view all the answers

What could low levels of arterial oxygen saturation (SaO2) suggest?

<p>Impaired oxygen supply to the body (D)</p> Signup and view all the answers

Which cardiorespiratory fitness marker reflects the efficiency of the cardiopulmonary system?

<p>Maximal oxygen consumption (VO2max) (B)</p> Signup and view all the answers

What factor can influence VO2max?

<p>Training level (D)</p> Signup and view all the answers

What does arterial oxygen saturation (SaO2) measure?

<p>Percentage of hemoglobin saturated with oxygen (D)</p> Signup and view all the answers

In the context of cardiorespiratory health, what is ejection fraction (EF) a marker of?

<p>Cardiac function (C)</p> Signup and view all the answers

What is the primary way to improve VO2max?

<p>Regular exercise training (B)</p> Signup and view all the answers

Which demographic typically has a higher range of VO2max according to the text?

<p>Men (B)</p> Signup and view all the answers

Which of the following chronic diseases can be reduced by improved VO2max?

<p>Coronary heart disease (A)</p> Signup and view all the answers

What does a low VO2max value indicate?

<p>Increased morbidity and mortality risk (C)</p> Signup and view all the answers

What is the normal range for arterial oxygen saturation (SaO2)?

<p>94-100% (B)</p> Signup and view all the answers

Which factor can reduce arterial oxygen saturation (SaO2)?

<p>High altitude (C)</p> Signup and view all the answers

What is the normal range for ejection fraction (EF) in adult patients without heart conditions?

<p>50-70% (C)</p> Signup and view all the answers

Which condition can cause a reduced ejection fraction (EF)?

<p>Myocarditis (A)</p> Signup and view all the answers

What does a low ejection fraction (EF) indicate?

<p>All of the above (D)</p> Signup and view all the answers

Which marker is used to monitor the effectiveness of cardiotherapy in heart failure patients?

<p>EF (C)</p> Signup and view all the answers

What does a higher VO2max value indicate?

<p>Improved overall health and longevity (C)</p> Signup and view all the answers

What can chronic low arterial oxygen saturation (SaO2) lead to?

<p>All of the above (D)</p> Signup and view all the answers

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