The mnemonic
ROME
What each word stands for
- RRespiratory
- OOpposite: pH and PCO₂ move in opposite directions
- MMetabolic
- EEqual: pH and HCO₃⁻ move in the same direction
Why it matters clinically
Quickly separates respiratory from metabolic disorders on a blood gas.
Where it stops being reliable
It does not identify compensation or mixed disorders.
Teaching aid, still awaiting independent review. Confirm facts in a standard source.