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HelpTest Code PHB1 Plasma, Haemoglobin
Additional Codes
| Epic Ordering Code | LAB3040291 |
| NBS code | LBC00475 |
| Service code | 31510 |
Specimen Requirements
Submit the following:
| Container: |
| Dark Green Top (Li Heparin) |
Processing Requirements
Centrifuge within 2 hours
Specimen type: Plasma
Volume: 0.5mL
Specimen Stability
| Specimen Type | Plasma |
|---|---|
| Ambient | 2 hours |
| Refrigerate | 1 week |
| Frozen | Reject |
Specimen Condition
| Haemolysis | Not available |
|---|---|
| Icterus | Not available |
| Lipaemia | Not available |
| Others | Not available |
Methodology
Photometry
Days and Times Performed
24 hrs, TAT 1 day
Reference Interval
≤0.05 g/dL
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Investigation of hemolytic anaemia: to detect moderate to severe intravascular hemolysis.
Update
Last updated on 27/07/2026
LOINC Code Information
721-1