Author Question: For carbon dioxide levels to remain constant during exercise, which of the following factors must be ... (Read 10 times)

dalyningkenk

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For carbon dioxide levels to remain constant during exercise, which of the following factors must be elevated?
 
  a. Alveolar ventilation
  b. Dead space ventilation
  c. Hemoglobin
  d. Bicarbonate

Question 2

Hypoventilation is defined as:
 
  a. decreased tidal volume.
  b. low-blood oxygen level.
  c. very slow respiratory rate.
  d. elevated blood carbon dioxide level.



ansleighelindsey

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Answer to Question 1

ANS: A
The partial pressure of carbon dioxide in the alveoli and blood is directly proportional to its pro-duction (CO2) and inversely proportional to its rate of removal by alveolar ventilation (VA).

Answer to Question 2

ANS: D
Ventilation that does not meet metabolic needs (resulting in respiratory acidosis) is termed hypoventilation. Hypoventilation is indicated by the presence of an elevated PaCO2.



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