| Laboratory: | Clinical Biochemistry |
| Test Name: |
CARBOXYHEMOGLOBIN - (B)
Test Code:
CBHB
|
| Clinical Information: |
Test performed at: St. Boniface Hospital
This test is intended for routine (same day) service requests. Collect blood for carboxyhemoglobin analysis as soon as possible following exposure to carbon monoxide. Half-life of carboxyhemoglobin in a patient is 320 min when breathing room air and 80 min when breathing 100% oxygen. Once collected, unopened sample is stable for 2 weeks. |
| Collection Devices: |
DO NOT use grey top Na Fluoride tube.
|
| Specimen Required: |
Blood: 4.0 mL
|
| Referral: |
Whole Blood: 4.0 mL
Collected in Lithium Heparin, No Gel Tube (Full Tube Collection). Do not centrifuge.
|
| Requisition: | |
| Reference Values: |
Non-Smoker: <2%
Heavy Smoker: <15% Toxic: >20% Lethal: >50% |
| Availability: |
Daily or Stat
|
| See Also: | |
| More Information: |
Blood is not to be centrifuged. HSC in-patients and acute samples will be dealt with directly by Respiratory. Collect out-patient blood for carboxyhemoglobin analysis and send without delay to SBH Chemistry.
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