Water Immersion and Dehydration Physiological Changes Quiz
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Questions and Answers

What physiological changes are observed in the hemolytic system by days 4 to 7 of bed rest?

  • Increase in lean body mass
  • Increase in cardiac output and stroke volume
  • Increase in fibrinogen and fibrinolytic activity, and prolonged clotting time (correct)
  • Decrease in serum osmolality and hematocrit

    • What effect does bed rest have on the metabolic rate?

  • It causes a temporary spike in the metabolic rate
  • It increases the metabolic rate
  • It decreases the metabolic rate (correct)
  • It has no effect on the metabolic rate

    • What are the observed effects on the hemolytic system by days 8 to 14 of bed rest?

  • Increase in serum osmolality and hematocrit
  • Decrease in red blood cell number and reduced phagocytic ability of leukocytes (correct)
  • Increase in venous compliance and urinary sodium and chloride excretion
  • Increase in lean body mass and bone density

    • What physiological changes occur after 15 days of bed rest?

    <p>Osteoporosis and hypercalciuria</p> Signup and view all the answers

    What is the primary effect on the cardiovascular system by days 4 to 7 of bed rest?

    <p>Decrease in cardiac output and stroke volume</p> Signup and view all the answers

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