CA 19-9, Pleural Fluid

Test Code

17642

CPT Codes
86301

Preferred Specimen

3 mL pleural fluid in a sterile transport tube

Minimum Volume

2 mL

Transport Temperature

Frozen

Specimen Stability

Room temperature: 72 hours
Refrigerated: 7 days
Frozen: 28 days

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

Lipemia

Methodology
Immunoassay (IA)

Setup Schedule

A.M. Sets up 1 day a week.

Reference Range

<37 U/mL

Clinical Significance

Measurement of pleural fluid tumor markers on patients with negative cytologic analysis may indicate the need for confirmatory pleural biopsy

Performing Laboratory
Quest Diagnostics Nichols Institute
33608 Ortega Highway
San Juan Capistrano, CA 92690-6130

Last Updated: November 6, 2024

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.