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CA-19.9
minimum sample volume required ~ 5ml
Test Code: C19
Tube type: SST
Other acceptable tube types
Lithium heparin (pale green)
Special instructions
None
Reference Range
<35
Please note: Following method change from 10/01/23, patients with known elevated CA19-9 may have significantly higher results with the new method.
Minimum retesting interval
Test should not be repeated within 7 days
Units
kU/L
Turnaround Time
2
days
Department: Biochemistry
Clinical Application
CA19.9 is a tumour marker for diagnosed gastrointestinal cancer. Its use in screening for disease is limited by sensitivity and specificity.
