Hyperbaric Question - COHb

[T-Rock]

I realize patient criteria (insurance) for HBOT in patients with CO poisoning is roughly a COHb of 25% or greater.

I’m curious though if there are any correlation tables out there that correlate COHb to the level of the patients Hemoglobin, or any formulas that do so?

The current criteria for patients of > 25% are for those with normal Hemoglobin, Males: 13.8 to 17.2 gm/dL; Female: 12.1 to 15.1 gm/dL, but what if a patients Hemoglobin is 7.3 gm/dL and their COHb is 14%?

Would that qualify the patient for treatment since their oxygen carrying capacity is greatly reduced?

A point in the right direction would be greatly appreciated!