HCO3 (mEq/L) |
Metabolic Acidosis Compensation: Winters' Formula
PaCO2 = [(1.5*HCO3) + 8] ± 2
PaCO2=arterial part press CO2
Assesses adequacy of compensation for metabolic acidosis
If calculated PaCO2 = actual PaCO2 , then compensation adequate.
If actual > calculated , then both met and resp acidosis present.
If actual < calculated , then met acidosis & resp alkalosis present.