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Carboxyhemoglobin (Carbon Monoxide)

Mnemonic:    [CO Hgb]
Name:    Carboxyhemoglobin (Carbon Monoxide)
Specimen:    1 mL whole blood from a Green heparin tube. Do not use gel barriers. Do NOTcentrifuge the tube.

The sample can also be collected in a heparinized blood gas syringe.
Spec Stability:    Stable 5 days ambient.
Reference Range:    Nonsmokers 0.0 - 1.5 %
 Smokers 4 - 5 %
 Heavy smokers 8 - 9 %
Critical Range:    > 10 %
  Method:    Spectrophotometry/Co-Oximetry
Note:    This test is included in a Blood Gas order.