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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:

Preferred Device:

1 - Li Heparin, NO GEL 4.0 mL Tube(s) - Full Tube Collection

Li Heparin, NO GEL 4.0 mL Tube(s) - Full Tube Collection
Manufacturer: BD (Becton Dickinson)

Catalogue #: 367884

DO NOT use grey top Na Fluoride tube.

Specimen Required:

Blood: 4.0 mL

Blood for carboxyhemoglobin analysis should be drawn as soon as possible after possible exposure to Carbon Monoxide. Sample is stable for two weeks in an unopened tube at room or refrigerator temperature. Avoid exposure of specimen to atmosphere.

DO NOT CENTRIFUGE

Specimen Stability:

Ambient - 2 weeks, unopened tube

Refrigerated - 2 weeks, unopened tube

Frozen - Not stable

Referral:

Whole Blood: 4.0 mL

Collected in Lithium Heparin, No Gel Tube (Full Tube Collection). Do not centrifuge.

Shipping & Storage: Refrigerated temperature is preferred.

Testing Laboratory (MB): St. Boniface Hospital

Collect and send without delay to SBH Chemistry.

Requisition: