CA 19-9

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Testing Laboratory

Auckland Te Toka Tumai | Auckland Hospital

Department

Chemical Pathology

Delphic Registration Code (Alpha Code)

C199

Test Code (Numeric Code)

3762

Laboratory Handling

Transport

Send a separated SST tube, or at least 300 uL serum aliquot. Transport at 4 o C.

Registration

OTHER FLUIDS: Please give a copy of the form to Cobas operators

Sample Stability

5 days at 20-25°C, 14 days at 2-8 °C, 3 months at -20°C

Synonyms

Carbohydrate antigen 19-9

Turnaround Time

3 hours

Specimen Type

  • Plasma
  • Serum

Specimen Requirements

Tube/Container Type:

Preferred
  • Lithium Heparin PST- Gel (Light Green Cap)
Acceptable
  • Heparin (Microtainer)
  • Plain (Red Top)
  • SST II (Gold Cap)
Preferred Sample Volume (ml)

4.5

Paediatric Specimen Requirements

Tube/Container Type:

Preferred
  • Heparin (Microtainer)
Acceptable
  • Lithium Heparin PST- Gel (Light Green Cap)
  • Plain (Red Top)
  • SST II (Gold Cap)
Minimum Sample Volume (ml)

0.5

Additional Specimen Information

5 mL PST Blood (Preferred)
Micro-PST 0.5 mL Paediatric Micro-PST Blood (Preferred)
Plain 4 mL Plain Serum
SST 3.5 mL SST Blood
Microsample 0.5 mL Paediatric Microsample Serum
Micro-heparin 0.5 mL Paediatric Micro-heparin Blood

Last updated: 12/03/2026