Test Code HPT Haptoglobin

Additional Codes

Epic Ordering Code	LAB89
NBS code	LBC04491
Service code	31274

Specimen Requirements

Submit only one of the following:

Preferred:	Acceptable:
Yellow Top	Light Green Top

Processing Requirements

Allow specimen to clot for 30 mins (Yellow Top) and centrifuge within 2 hours

Specimen type: Serum

Volume: 0.5mL

Specimen Stability

Specimen Type	Serum/Plasma
Ambient	7 days
Refrigerate	7 days
Frozen	2 weeks

Specimen Condition

Haemolysis	OK
Icterus	OK
Gross Lipaemia	Alert/Reject
Others	Not applicable

Methodology

Immunoturbidimetry

Days and Times Performed

24 hrs, TAT 1 day

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.

Update

Last updated 17/07/2026

LOINC Code Information

4542-7