Chromosome Analysis, Blood, Breakage Syndromes

Alphabetical Test listing

Chromosome Analysis, Blood, Breakage Syndromes-994

Restricted to internal orders from the Allina Health Cancer Institute and Allina Health Genetic Counselors

Test name:

Chromosome Analysis, Blood, Breakage Syndromes

Test number:

994

Excellian order number:

LAB994

Abbreviation:

MSO

Alternate names:

Blood, Breakage Study
CHROMO BREAK
Ataxia Telangiectasia
G-band
Nijmegan Breakage Syndrome
Accidental Radiation Exposure
Clastogen Exposure

Useful for:

Evaluation of baseline (sometimes referred to as spontaneous) chromosomal breakage may be indicated in patients who:

Have had intentional or accidental exposure to radiation or other clastogen exposure.
Are suspected of having a chromosomal instability disorder such as ataxia telangiectasia or Nijmegen Breakage Syndrome.

Specimen type:

Whole Blood

Collection container:

Dk green Sodium heparin (Na hep), no gel

Volume:

5 mL

Minimum volume:

3 mL

Collection instructions:

Immediately following collection, mix sample thoroughly by gently inverting 8 - 10 times to prevent clotting.

Transport container:

Dk green Sodium heparin (Na hep), no gel

Required forms/information:

Genetic Testing Consent Form

Transport and stability:

Ambient - 24 hours

Specimens must be received in the Cytogenetics laboratory Mon-Fri by 530 pm; Weekends and Holidays by 430 pm. Specimens received after these cutoffs will be processed the following day

Reason for rejection:

Clotted or frozen specimen

Incorrect specimen collection tube (anticoagulant)

Performing lab:

M Health Fairview Reference Laboratories (LAB4692); R-NX

Days set up:

Mo - Su

TAT:

7 - 21 days

Method:

Chromosome breakage analysis; determined by laboratory director based on clinical infromation

CPT codes:

88230 x1, 88248 x1

Subject to medical necessity (Y/N):

Yes

Date created:

07/31/2023

Revised date:

03/28/2025

Review date:

07/31/2023