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pH and breathing rate

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

  1. vvvv

    vvvv 2+ Year Member

    May 12, 2007
    (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

    thebozz1975 5+ Year Member

    Oct 5, 2007
    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

    osimsDDS 5+ Year Member

    Jun 8, 2007
    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

    Orgodox 7+ Year Member

    Feb 8, 2008
    New York
    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

    thebozz1975 5+ Year Member

    Oct 5, 2007
    The Kaplan course book (white book) is in agreement with all of us.

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