Soluble CD25 (Blood)

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Testing Laboratory

Auckland Te Toka Tumai | Auckland Hospital

Department

Haematology

Delphic Registration Code (Alpha Code)

CD25

Test Code (Numeric Code)

4111

Laboratory Handling

Phlebotomy

  • Requests for this test must be arranged by contacting a LabPLUS Haematologist. Contact details below.
  • Requests received with no prior discussion will not be processed. Please provide requestor contact phone details on request form.
  • Collect 1 x 4.5ml PST Gel Heparin tube.

    Transport

  • Requires urgent hand delivery to Haematology Department along with a copy of the request form.
  • Internal:Immediately spin and separate plasma to 2 x 1ml aliquots. Hand deliver spun and separated Heparin plasma to Coagulation Lab. Freeze at -20c.
  • External Laboratories must FREEZE the plasma within 24-hours of collection and send 2 x 1ml Heparin Plasma aliquots to LabPlus frozen.

    Registration

    Please register test code CD25.

    Separating

    Immediately spin and separate plasma to 2 x 1ml aliquots. Hand deliver spun and separated Heparin plasma to Coagulation Lab. Freeze at -20°C.

    Sample Stability

    Spin within 1-hour of collection. Aliquot and store samples at -20°C.

    • Synonyms

    sCD25
    Soluble IL2 Receptor alpha

    Turnaround Time

    2 days

    Blood samples must be received in the laboratory Monday - Friday 0800 - 1200 hrs.

    This test may be vetted by the laboratory. Please include relevant clinical information on the request form to ensure appropriate tests are approved. See the 'Clinical Information' section below for more information on the indications for testing.

    Specimen Type

    • Whole Blood

    Specimen Requirements

    Tube/Container Type:

    Preferred
    • Lithium Heparin PST- Gel (Light Green Cap)
    Preferred Sample Volume (ml)

    4.5

    No of Samples Required

    1

    Paediatric Specimen Requirements

    Tube/Container Type:

    Preferred
    • Heparin (Microtainer)
    Preferred Sample Volume (ml)

    2

    Pre-testing Requirements

    Requests for this test must be arranged by contacting a LabPLUS Haematologist. Contact details below.
    Requests received with no prior discussion will not be processed. Please provide requestor contact phone details on request form.

    Last updated: 26/08/2026