CA 19-9, Peritoneal Fluid [17638X]

For Specimen Integrity during Extreme Weather see the “Lockbox Usage in Extreme Weather” document at the top of this page.

Test Code

Alias/See Also

CPT Codes

Preferred Specimen
3 mL peritoneal fluid submitted in a sterile, leak-proof container

Minimum Volume
2 mL

Light hemolysis, moderate hemolysis, and gross hemolysis are acceptable.

Transport Temperature

Specimen Stability
Room temperature: 7 days
Refrigerated: 7 days
Frozen: 28 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Pancreatic fluid


Setup Schedule
Set up: Wed; Report available: 2-9 days

Reference Range
15-360 U/mL

* Arch Gynecol Obstet (2005) 271:40-45

Clinical Significance
The simultaneous high concentrations of CA 19-9 and CA 15-3 in women with endometriosis may be involved in the pathophysiology of endometriosis

Performing Laboratory
Quest Diagnostics Nichols Institute-San Juan Capistrano, CA
33608 Ortega Highway
San Juan Capistrano, CA 92675-2042

Last Updated: November 24, 2021

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.