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Test Code TRF Transferrin

Additional Codes

Epic Ordering Code LAB133
NBS code LBC00962
Service code 31272

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/Plasma

Volume: 0.5mL

Specimen Stability

Specimen Type Serum
Ambient 3 days
Refrigerate 3 days
Frozen 6 months

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 – 8 wks 1.04 – 2.24 g/L
9 wks – < 1 yr 1.07 – 3.24 g/L
1 – 18 yrs 2.20 – 3.37 g/L
19 – 59 yrs 1.74 – 3.64 g/L 1.80 – 3.82 g/L
60 – 79 yrs 1.63 – 3.44 g/L 1.73 – 3.60 g/L

Testing Laboratory

National University Hospital

Clinical Chemistry, 67724346

Useful For

Differential diagnosis of anaemia.

Decreased level is seen in protein-calorie malnutrition, liver dysfunction or acute inflammation.

Update

Last updated 28/07/2026

LOINC Code Information

3034-6

Alias

Iron Binding Protein

TRSF