Normal pH
7.35-7.45
Normal CO2
35-45
Normal HCO3 22-26
Acidic pH
< 7.35
Acidic CO2
> 45
Acidic HCO3
< 22
Alkali pH
> 7.45
Alkali CO2
< 35
Alkali HCO3
> 26
ROME method
If pH is out of range and CO2 or HCO3 is in range
uncompensated
Uncompensated
If pH is out of range and CO2 or HCO3 is in range
If CO2, HCO3, pH are all out of range
Partially compensated
Partially compensated
If CO2, HCO3, pH are all out of range
If pH is in range
Fully compensated
Fully compensated
pH is in range