Fibroblast Growth Factor (FGF2)

Test Code

CPT Codes

Preferred Specimen
1 mL plasma collected in an EDTA (lavender-top) tube

Minimum Volume
0.5 mL

Draw blood in an EDTA Vacutainer® tube. Mix thoroughly. Centrifuge at 3000 x g for 10 minutes at 4° C within 6 hours of draw. Remove the plasma and place into a 12 x 75mm Nichols tube. Store at -20° C or -70° C immediately and ship the plasma frozen.

Note: Cytokine levels may demonstrate diurnal variation. Recommend cytokine levels be determined at the same time of day for improved longitudinal comparison.

Transport Container
Plastic screw-cap vial

Transport Temperature

Specimen Stability
Room temperature: 7 days
Refrigerated; 14 days
Frozen: 28 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Non-validated sample types

Immunoassay (IA)

FDA Status
This test was performed using a kit that has not been cleared or approved by the FDA. The analytical performance characteristics of this test have been determined by Quest Diagnostics. This test should not be used for diagnosis without confirmation by other medically established means.

Setup Schedule
Set up: Wed (first week of every month); Report available: 7-30 days

Reference Range
≤6.5 pg/mL

Clinical Significance
This test can be used to measure the bFGF level to serve as an independent prognostic indicator for patients with chronic myelogenous leukemia (CML), chronic lymphocytic leukemia (CLL) and multiple myeloma (MM).

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

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.