FISH, B-Cell Chronic Lymphocyt

Test Code

FISHBCELL

Quest Code

16864

CPT Codes
88271 (x6), 88275 (x3)

Preferred Specimen

3 mL bone marrow or 5 mL whole blood collected a sodium heparin (green-top) tube

Minimum Volume

1 mL bone marrow • 3 mL whole blood

Other Acceptable Specimens

Bone marrow or whole blood collected in: Sodium heparin (royal blue-top) tube or sodium heparin lead-free (tan-top) tube • 5x5 tumor tissue collected in a transport media

Transport Container

Sodium heparin (green-top) tube

Transport Temperature

Room temperature

Specimen Stability

Specimen viability decreases during transit. Send specimen to testing lab for viability determination. Do not freeze. Do not reject.

Methodology
Fluorescence in situ Hybridization (FISH)

FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Setup Schedule

Day shift and night shift Daily

Report Available

10 days

Reference Range

See Laboratory Report

Clinical Significance

⁠⁠⁠⁠⁠⁠⁠This test is performed to detect the rearrangements of 6q21 (SEC63), 6q23 (MYB), ATM (11q22.3), centromere 12 (D12Z3), 13q14.3 (DLEU), 13q34 (LAMP1) and TP53 (17p13.1) regions, by FISH (fluorescence in situ hybridization). This assay is useful for prognostic assessment for chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL).

Performing Laboratory

Quest Diagnostics LLC

200 Forest Street, 3rd Floor, Suite B

Marlborough, MA 01752-3023

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.