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Acid base buffer

  1. what are the basic buffer systems in the blood
    • bicarbonate (HCO3)
    • hemoglobin
    • protein
    • HPO4 2-
  2. what are the acidic buffer systems in the blood
    • CO2
    • Hgb * H+
    • protein *H+
    • H2PO4 -
  3. what is the hendersohn hasselbach equation
    pka + Log [A-]/[HA]
  4. what is the bicarbonate and pCO2 ratio of a normal person?
    20:1
  5. normal range for blood pH
    7.35-7.45
  6. normal range for pCO2
    35-45 mmHg
  7. normal range for [HCO3-]
    22-26 mM
  8. in what direction is HCO3 and PCO2 will be when body is compensating
    same direction
  9. what the equation for determining [CO2] and [O2]
    • [CO2]=d[CO2] = 0.03 x pCO2
    • [O2] = d[O2] = 0.03 x PO2
  10. carbonic acid concentration in blood plasma equals
    0.0307 mmol/L*mmHg x PCO2 mmHg
  11. common factors that influence the amount of O2 that moves through the alveoli, blood and then tissue
    • destruction of alveoli
    • pulmonary edema
    • airway blockage
    • inadequate blood supply
    • diffusion of CO2 and O2
  12. what is oxyhemoglobin (O2Hb)
    O2 reversibly bound to hemogllobin
  13. deoxyhemoglobin (HHb)
    hemoglobin not bound to O2 but capable of forming a bond when O2 is available
  14. carboxyhemoglobin (COHb)
    hemoglobin bound to CO
  15. methemoglobin (MetHb)
    hemoglobin unable to bind O2 bc iron (Fe) is in an oxidized rather than reduced state
  16. what is p50
    • the partial pressure of oxygen in the blood in which 50% of hemoglobin is saturated.
    • at 26.6 mmHg
Author
tanyalequang
ID
343437
Card Set
Acid base buffer
Description
acid base buffer
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