Cardiovascular Physiology Equations Quiz
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Questions and Answers

What is the Fick equation for VO2?

  • VO2 = Q + a-vO2diff
  • VO2 = Q imes a-vO2diff (correct)
  • VO2 = Q - a-vO2diff
  • VO2 = Q imes (a-vO2diff)

    • What is the normal resting VO2 for a person with a body mass of 70kg?

  • 300 mL
  • 200 mL
  • 150 mL
  • 245 mL (correct)

    • What is the conversion factor for 1L O2 to kcals?

  • 5 kcals (correct)
  • 8 kcals
  • 3 kcals
  • 10 kcals

    • What is the equation for converting watts to kg·m/min?

    <p>kg·m/min = (watts) imes 6.12</p> Signup and view all the answers

    What is the unit of energy system adaptations to training?

    <p>Unit 1</p> Signup and view all the answers

    What does the Oxyhaemoglobin dissociation curve represent?

    <p>The relationship between oxygen and hemoglobin</p> Signup and view all the answers

    What does the CO2 transport refer to?

    <p>Transport of carbon dioxide in the blood</p> Signup and view all the answers

    What does the term 'ventilatory drift' refer to?

    <p>Gradual increase in ventilation during prolonged exercise</p> Signup and view all the answers

    What is the equation for cardiac output (Q)?

    <p>$Q = SV \times HR$</p> Signup and view all the answers

    What is the formula for mean arterial pressure (MAP)?

    <p>$MAP = \frac{1}{3} SBP + \frac{2}{3} DBP$</p> Signup and view all the answers

    What is the equation for resistance?

    <p>$Resistance = \frac{pressure}{flow}$</p> Signup and view all the answers

    What does the ejection fraction represent?

    <p>Percentage of blood ejected from the heart</p> Signup and view all the answers

    What does the VD/VT ratio measure?

    <p>Gas exchange efficiency</p> Signup and view all the answers

    What is the formula for alveolar ventilation (VA)?

    <p>$VA = (VT - VD) \times frequency$</p> Signup and view all the answers

    What is the formula for work rate (WR) in terms of metabolic equivalent (METs)?

    <p>$METs = \frac{VO2}{body mass} \div \text{Resting energy expenditure}$</p> Signup and view all the answers

    What is the equation for mechanical efficiency?

    <p>Mechanical efficiency (%) = $\frac{external work accomplished (watts)}{energy expended (VO2)} \times 100$</p> Signup and view all the answers

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