Test Code CAGG Cold Agglutinin

Important Note

For External Clients

Please ensure that sample is clotted at 37°C and serum is separated at 37°C. To provide red cells and serum sample.

Specimen Requirements

Specimen Type: Serum

Container/Tube: Red Top

Volume: 6.0 mL
Collection Instructions:

Collect blood in pre-warmed tube and keep at 37°C. To call BTS at 6772 2305 to arrange for 37°C transport container collection. Once sample is taken, to keep in 37°C transport container before reaching the laboratory.

Send specimen to the laboratory immediately. Transport container cannot be sent via pneumatic tube, please arrange for samples to be sent to lab by hand once collected.

Specimen Stability

Specimen Type	Serum
Ambient	Not Applicable
At 37°C	Freshly drawn samples (preferred)
Refrigerate	Not Applicable
Frozen	Not Applicable

Specimen Condition

Gross Haemolysis	Reject
Icterus	OK
Lipaemia	OK
Others	Insufficient specimen, Kept in ice/refrigerated, NUH patients - sample not sent using the 37°C transport container - Reject

Methodology

Haemagglutination

Days and Times Performed

Monday through Sunday

Routine, TAT 1 day

Reference Interval

Titre < 64

Testing Laboratory

National University Hospital
Transfusion Services, 67722305

Useful For

To determine presence of cold agglutinin in conditions such as autoimmune haemolytic anaemia, mycoplasma infection and infectious mononucleosis

Service Code

2012201

Update

Last updated 16/06/2025

Laboratory Code

LAB4001

LOINC Code Information