Alkalosis vs. acidosis Mnemonic

directions of pH and HCO3 

ROME:

Respiratory= Opposite:

 pH is high, PCO2 is down (Alkalosis).
 pH is low, PCO2 is up (Acidosis). 

Metabolic= Equal:
 pH is high, HCO3 is high (Alkalosis).
 pH is low, HCO3 is low (Acidosis).