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ATM Deletion by FISH


TEST DIRECTORY
Test Name
ATM Deletion by FISH
Description
Fluorescence in-situ hybridization (FISH) using a DNA probe set to identify deletions of ATM associated with CLL.
Test Code
41897
SPECIMEN REQUIREMENTS
Specimen
Bone marrow, neoplastic blood
Specimen Requirements
Bone marrow or peripheral blood collected in sodium heparin (green topped) tube
Storage Requirements
Store specimens at room temperature (15 to 30°C) until transported, adding a cold (refrigerator) pack during the summer months.
Causes for Rejections
Decalcified tissues are not accepted.
GENERAL AND TECHNICAL INFORMATION
Turn Around Time
Formalin-fixed paraffin embedded tissue: 7 days
Fresh tissue, bone marrow, and blood: 3-10 days
Methodology
Fluorescence in-situ hybridization (FISH)
CPT Code
  • Formalin-fixed paraffin embedded tissue: 88377
  • Fresh tissue: 88271, 88275, 88291