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HelpTest Code HPT Haptoglobin
Laboratory Code
LAB89
Specimen Requirements
Submit only one of the following:
Preferred
Specimen Type: Serum
Container/Tube: Gold Top (SSTII)
Volume: 5.0 mL
Minimum Volume: 0.5 mL serum
Collection Instructions: Allow specimen to clot for 30 mins and centrifuge within 2 hrs.
Acceptable
Specimen Type: Plasma
Container/Tube: Green Top (Li Heparin/PST)
Volume: 4.5 mL
Minimum Volume: 0.5 mL plasma
Collection Instructions: Centrifuge within 2 hrs.
Specimen Stability
| Specimen Type | Serum/Plasma |
|---|---|
| Ambient | 7 days |
| Refrigerate | 7 days |
| Frozen | 2 weeks |
Methodology
Immunoturbidimetry
Days and Times Performed
24 hrs, TAT 1 day
Specimen Condition
| Haemolysis | OK |
|---|---|
| Icterus | OK |
| Gross Lipaemia | Alert/Reject |
| Others | Not applicable |
Reference Interval
| Age | Male | Female |
|---|---|---|
| 0 – 14 days | 0.00 – 0.10 g/L | |
| 15 days – <1 yr | 0.07 – 2.21 g/L | |
| 1 – 11 yrs | 0.07 – 1.63 g/L | |
| 12 – 18 yrs | 0.07 – 1.79 g/L | |
| 19 – 59 yrs | 0.14 – 2.58 g/L | 0.35 – 2.50 g/L |
| ≥ 60 yrs | 0.40 – 2.68 g/L | 0.63 – 2.73 g/L |
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Indicator of intravascular haemolysis.
Service Code
31274
LOINC Code Information
4542-7
Update
Last updated 11/03/2025