| (Biochemistry) |
| Investigation | : | Carboxyhaemoglobin | |
| Specimen type | : | Whole Blood | |
| Spec container | : | Special tube - contact lab | |
| Volume required | : | contact lab | |
| Turnaround | : | <15 mins | |
| Reference Range | Units | |
| non - smokers | 0.5-1.5 | % |
| smokers - 1-2 packs/day | 4-5 | |
| smokers - >2 packs/day | 8-9 |
Contact Duty Biochemist for information.