Fluorescence In Situ Hybridization for Leukemia / Lymphoma Panels (FISH-PL)

CPT Code(s)

88271x5, 88275, 88291

Synonym(s)

SEE under each Panel

Performed

In-House

Methodology

Unstimulated short-term culture; interphase cell slide preparation; DNA denaturation with target probes and hybridization followed by post-hybridization wash; DAPI application for fluorescence microscopic analysis of nuclei; interpretation and report

Panel/Profile Components

SEE under each panel

Critical Values

STAT (Promyelocytic Leukemia / Burkitt Lymphoma): Preliminary results in 24 hours

Specimen Collection / Handling Requirements

  1. Whole bone marrow collected in green top – sodium heparin tube
  2. Lymph node biopsy collected in sterile 15 mL tube with RPMI or sterile saline
  3. Store and ship at room temperature
  4. Avoid freezing or heating
  5. Ship within 24 hours
  6. Delay > 24 hours – Refrigerate the sample
  7. A complete requisition slip must accompany all specimens and the specimen must be labeled with the patient’s name and identification
  8. ANY SPECIMENS RECEIVED WITHOUT A COMPLETE REQUISTION OR AN UNLABELED SPECIMEN WILL BE REJECTED.
  9. All requisition must have a valid ICD-10 code/clinical indication and must have the name of an authorized Any sample without this information will be rejected.

Minimum Specimen Requirements

Optimal Quantity: 3-4 ml; Minimum Quantity: 1-2 ml (Bone Marrow & Leukemic Blood), Optimal Quantity: 2 cm3; Minimum Quantity: 1 cm3 (Lymph Node & Tissues)

Turnaround time

Total testing time: 7 days

Communication

  1. Turnaround time non-conformity: Email or call Pathologist on request form to notify them of the
  2. Specimen rejection:
  3. Technical Updates: Email Applicable Laboratory

Quality

3.        QA/Utilization Report