Carboxyhemoglobin (COHb)

Test/Range/Collection

Carboxyhemoglobin, whole blood (COHb, %)

<2% [non-smokers]

<9% [smokers]

Blood gas syringe or green

$$

Specimen should be collected before treatment with oxygen is started.

Do not remove stopper or cap. Refrigerate within 30 min after collection, if needed.

There's more to see -- the rest of this topic is available only to subscribers.