Chromosomal Analysis-GenPath
Performing Laboratory
GenPath/Bio-Reference Laboratories, Inc.
Methodology
Cytogenetics
Specimen Requirements
Specimen must arrive at GenPath within 24 hours of collection.
Specimen source is required.
Please note diagnosis under consideration.
Submit only 1 of the following specimens.
Specimen Type: Bone marrow
Container/Tube: Green top - sodium heparin
Specimen Volume: 2 mL
Specimen Type: Whole blood
Container/Tube: Lavender top (EDTA) or green top (heparin)
Specimen Volume: 5 mL
Specimen Type: Fresh tissue
Container/Tube: Container with RPMI media
Specimen Volume: Adequate amount
Causes for Specimen Rejection:
-No patient ID on specimen
-Patient ID on specimen and requisition doesn’t match
-Incorrect fixative (tube/solution)
-Specimen without GenPath/Bio-Reference requisition
-Frozen specimen
Specimen Transport Temperature
Refrigerate <24 hours/Ambient NO/Frozen NO
Day(s) Test Set Up
Monday through Saturday
Turnaround Time:
5 to 7 days
Test Classification and CPT Coding
88237-Tissue culture for bone marrow
88262-Count 15-20 cells, 2 karyotypes, with banding