Chromosome Analysis, Blood, Sister Chromatid Exchange

Sunquest Code:BLDSCECoPath Code:BLOODSCE
Epic Code:LAB4697Epic Name:Blood, Sister Chromatid Exchange
Sunquest Code (non-Epic sites):CYHOLD  
Order Instructions:Do not order.
Methodology:Determined by laboratory director based on clinical information. Chromosome analysis.
CPT Code:88230 (culture), 88245 (analysis), 88291 (interpretation)
Turnaround Time:Processed daily. Results are reported within 28 days.
Special Instructions:Request form should include date and time of specimen collection, attending physician, diagnosis (or reason for referral), clinical status, information regarding medication or transfusions, and specimen type.
Associated Links:

Genetic Testing Consent Form

Collection Instructions

Optimal Volume:10 mL
Minimum Volume:5 mL
Container:Green (sodium heparin, no gel).
Causes for Rejection:Clotted or frozen specimen.

Processing and Shipping

Specimen Processing:Store at room temperature. Do NOT refrigerate or freeze. Do not process.
Shipping Instructions:Ship at room temperature. Must arrive within 24 hours.
Test Performed at or Referral Lab Cytogenetics  (UMMC-East Bank)

After hours: Store at room temperature and contact Cytogenetics Laboratory (lab or voice mail at 612-273-3171) for specimen pick up as follows:

·   During regular hours: (Mon-Sun, 0800-1700): telephone laboratory whenever specimens are sent.

·   After regular hours: leave voice mail to indicate specimen has been sent or has arrived.


CPT Multiplier Notes Epic Proc
Billing# Chg/EaTotal Chg
Date modified:12/12/2014 11:07:36 AM -->

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