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Old 04-01-2013
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Default response to exercise

hey guys, I have a question.

In response to exercise, FA say there is no change in PaO2 and PaCO2, but
increase in venous CO2 content.

I don't understand how there is no chance in PaO2 AND PaCO2...

Can anybody help me?
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Old 04-01-2013
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Respiratory rate matches metabolic demands
So during exercise increased respiratory rate keeps arterial blood gases within normal range
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Old 04-02-2013
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Ive read that reason for high venous CO2 is .. The muscle does produce increased CO2 but that only reflects on the venous blood cuz it'll be cleared by lungs before it reaches arterial system
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Old 04-02-2013
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Default Response to exercise

In response to exercise,
In venous system PO2 decrease,whereas PCO2 increases.
In arterial system, no significant change in PO2 & PCO2 ( because hyperventilation to remove CO2)
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Old 04-02-2013
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Quote:
Originally Posted by ethan_kien View Post
In response to exercise,
In venous system PO2 decrease,whereas PCO2 increases.
In arterial system, no significant change in PO2 & PCO2 ( because hyperventilation to remove CO2)
Could you please explain the increase in venous PO2?
Thanks
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