Blood Gas Analysis and Interpretation
STEPS TO ANALYSIS
1. Look at PH. Alkalotic or acidotic?
- If alkalotic, then it is an alkalosis.
- If acidotic, then it is an acidosis.
2. Look at components.
- pCO2 (respiratory component) - alkalotic or acidotic?
- Bicarb/BE/BD (metabolic component) - alkalotic or acidotic?
3. Which component agrees with pH?
- Whichever agrees with pH (respiratory or metabolic) is "Primary".
- If the other component is in the other direction, it is "Secondary".
- If they both agree, then it is "Combined".
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