Cancerag242serplql
Key facts at a glance
- LOINC
- 2011-5
- Short code
- CA242
- Synonyms
- Cancer Ag242 SerPl Ql
- Category
- chemistry
- Sample
- serum
- Container
- Serum separator tube (SST) or red-top tube
- Units
- N/A
- Ref low
- 0
- Ref high
- 20
- Critical range
- 0.5 N/A – —
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–99 years
- Method
- Immunoassay (e.g., ELISA, RIA, or chemiluminescent immunoassay)
- CPT
- 86316
- SNOMED
- 115327008
- Specimen volume
- 1-2 mL of serum
- Stability
- Stable for 24 hours at room temperature (15-25°C); up to 7 days at 2-8°C; up to 3 months at -20°C or below. Avoid repeated freeze-thaw cycles.
- Hemolysis max
- 100
- Lipemia max
- 100
- Icterus max
- 50
- TAT
- 24–72 hours
- Order
- routine
Reference range
Negative: <20 U/mL; Positive: ≥20 U/mL (reference values may vary by laboratory and assay manufacturer)N/A
No fasting required. Patient should be informed that CA 242 is a tumor marker primarily associated with pancreatic and colorectal cancers and is used for monitoring rather than screening.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 17, 2026. · Read our editorial policy