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12 Cards in this Set
- Front
- Back
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regular blood pH range
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7.35 to 7.45
above = alkolotic below = acidic |
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CO2
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35-45mmHg
below 35 =alkalotic above 45= acidosis |
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HCO3
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22-26 mEq/L
below 22 =acidotic above 26= alkalotic out of range = metabolic.... |
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O2 sat
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95-100%
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pO2
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80-100 normal
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6 Easy steps to ABG Analysis
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1. Is the pH normal? 7.35-7.45
2. Is the CO2 normal? 35-45 3. Is the HCO3 normal? 22-26 4. match the CO2 or the HCO3 with the PH. 5. Does the CO2 or the HCO3 go the opposite direction of the pH? 6. Are the pO2 and the O2 saturation normal? |
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Step 1 of ABG analyses
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look at pH. below 7.35= it is acidic. above 7.45=alkalotic.
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Step 2 of ABG analysis
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examine the pCO2. below 35 = alkalotic, above 45- acidic
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Step 3 of ABG analysis
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HCO3 below 22= acidotic. above 26= alkalotic
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Step 4 of ABG analysis
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match the CO2 or the HCO3 with the pH to determine the acid-base disorder. ex. pH is acidotic, below 7.35, then the acid-base disturbance is being caused by the respiratory system. called respiratory acidosis. however if the pH is alkalotic, above 7.45, and the HCO3 is alkalotic, the acid-base disturbances is being caused by the metabolic or renal system, therefore it will be a metabolic alkalosis.
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Step 5 of ABG analysis
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does either the CO2 or the HCO3 go in the opposite directoin of the pH? if so, there is compensation by theat system. for example, the the pH is acidotic, the CO2 is acidotic, and the HCO3 is alkalotic, The CO2 mathces the pH making the primary acid-base dosirder respiratory acidosis. the HCO3 is opposite of the pH and would be evidence of compensation from the metabolic system.
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Step 6 of ABG analysis
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evaluate the PaO2 and the O2 sat. if they are below normal there is evidence of hypoxemia
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