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pH and breathing rate

Discussion in 'DAT Discussions' started by vvvv, Jun 16, 2008.

  1. vvvv

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    (T/F) an elevation in pH causes peripheral chemoreceptors to increase the rate and depth of breathing.

    I thought increase pH mean high HCO3- , this is because CO2 release too fast (hyerventilation) so it should reduce the rate but the answer is increase/.....someone helps me please
     
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  3. thebozz1975

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    You are almost there. Yes, too much CO2 leads to too much bicarbonate b/c this is how CO2 is transported after being converted to bicarbonate in red blood cells. Respiratory rate is increased b/c the increased gas exchange returns blood pH to normal by decreasing bicarbonate in the blood.
     
  4. osimsDDS

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    I think you are right, i believe the answer is incorrect...if you have an increase in pH that means that you have more oxygen less HCO3- or "CO2" therefore you would decrease breathing rate
     
  5. Orgodox

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    Yea i'm with osims. I read in destroyer that if you decrease the pH you increase breathing rate. So by extension wouldn't an increase in pH mean the opposite?
     
  6. thebozz1975

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    The Kaplan course book (white book) is in agreement with all of us.
     

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