Flight Medic

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The fastest physiological mechanism for acid base correction is
A) phosphate buffer system
B) renal system
C) bicarbonate buffer system
D) respiratory system

C) bicarbonate buffer system
(this multiple choice question has been scrambled)
pH
- calculation of the presence of H
- Test tip: Hydrogen (H⁺) -> Acid
During aerobic metabolism cells primarily produce

Adenosine triphosphate
Bohr Effect
- occurs as a result of CO₂binding to HgB causing decreased affinity of hemoglibin for oxygen
- Test Tip: Bohr effect -> release of O₂ -> tissue level
Most definitive test for 'shock"
- Elevated lactate
- normal lactate is 0.7-2.1 mEq/L (remember Lactate 1-2)
- Test tip: Shock -> Lactate
- Lactate>4 ->significant
- acidosis -> hyperkalemia
Oxyhemoglobin dissociation curve Right shift:
- HbG Releases O₂
- Right shift caused by; Raised temp; Raised 2-3 DPG; Raised acidosis; Reduced oxygenation
Oxyhemoglobin dissociation curve Left shift
- HgB hoLds O₂
- Left shift caused by: Low temp; Low 2-3 DPG; aLkalosis (Low acidosis); Lots of CO
"Fixed acids" are removed by
- Renal system only
- Cannot be be changed by the bicarbonate buffer system
Haldane effect

is what emables us to remove large amounts of CO₂
Magority of CO₂ is transported by

bicarbonate in plasma
The relationship of EtCO₂ to PaCO₂ should
- demonstrate EtCO₂ is slightly lower than PaCO₂
- this pressure gradient is what allows CO₂to be removed from lungs
The relationship of pH, K+, EtCO₂and PaCO₂
- ^PaCO₂ 10mm Hg -> _VpH 0.08 (for every change of PaCO₂ 10mmHg you will see a change of pH 0.08 in opposite direction)
- ^ pH 0.1 -> _VK+ 0.6(for every change of pH 0.1 you will see a change of K+ 0.^ in opposite direction)
- Change in EtCO₂ is about = to change in PaCO₂

Author

kkfuller

30897

Card Set

Flight Medic

Description

Flight Medic Resp. Acid-Base and Vent management

Updated

2010-08-23T17:00:55Z

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