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St. John Health System
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Chromosome Analysis - Hematologic Malignancy

Order Name CHROMOS HM
Test Number: 9113150
Revision Date 12/01/2022
Test Name Methodology LOINC Code
Chromosome Analysis - Hematologic Malignancy
Karyotype  
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 5 mL (1 mL) Bone Marrow Sodium Heparin (Green Top, No-Gel) Room Temperature
Alternate 1 5 mL (3 mL) Whole Blood Sodium Heparin (Green Top, No-Gel) Room Temperature
Instructions Send specimen ASAP, Keep at room temperature! (DO NOT FREEZE). Frozen samples will be rejected.
GENERAL INFORMATION
Testing Schedule Mon-Fri 
Expected TAT 8-12 Days 
Clinical Use This is a bone marrow or peripheral blood chromosome analysis to aid in the identification leukemia. 
Notes For more information on this test, access our "Specialized Tests" section.
CPT Code(s) 88237 88291 88264
Internal Comments 5/11/18 88261 88237x2 88291 88280 to 88237x1 88291 88264 - JK
12/1  change cpt from 88237x1 88291 88264  to  88237 88291 88264 - JK
Service Provided By Labcorp Oklahoma, Inc.
Lab Section Reference Lab