CA 19-9 (Digestive cancer marker)
CA 19-9 is a mucin-associated carbohydrate antigen synthesized along the biliary tree, responsive to bile duct transit.
Test your personal value
Enter the number from your lab report to instantly see how it compares to reference ranges.
Physiological Reference Ranges
The ranges below represent standard adult physiological values. Your laboratory's printed reference range always takes precedence.
0 – 37 UI/mL
0 – 37 UI/mL
0 – 37 UI/mL
What does a low result mean?
A reading below 37 UI/mL is the ordinary reassuring reference benchmark.
What does a high result mean?
A moderate elevation is exceedingly common and harmless with gallstones, gallbladder sludge, or minor digestive irritation.
Questions ready for your doctor
Bring these questions to your next consultation to discuss with your healthcare practitioner:
- Could gallbladder sludge or small gallstones account for this elevation?
- Would an abdominal ultrasound verify smooth bile flow?
- Is a follow-up assessment suggested later?
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Important information — Medical notice
ScanMyLab is for informational purposes only. It does not provide a diagnosis and never replaces the advice of your doctor or laboratory.