Exp Comp for Resp Alkalosis, Chronic
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PaCO2 (mmHg)
R e s u l t s
HCO3 (mg/dL)
? ? ?
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Exp Comp for Resp Alkalosis, Chronic
 

Expected bicarbonate =

24 - ((Baseline PCO2 - Patient's PCO2)/2)

 

NOTE: Baseline PCO2 default should be 40.

 

Interpretation: If patient's bicarb is higher than expected, a superimposed metabolic alkalosis is present. If it is lower, a superimposed metabolic acidosis is present.

 

Since the limit of compensation varies between 12 and 20, value less than 20 should be cautiously judged.