Alternate test name
Chromosome Breakage Tests
Genome Diagnostics - Cytogenetics
Method and equipment
3 day culture with addition of Bromodeoxyuridine; Specialized staining for SCE
Expected turn-around time
3-6mL (3 mL minimum for neonates)
Storage and transportation
Maintain at room temperature. Do not refrigerate or freeze.
Collect in sodium heparin tube
The Hospital for Sick Children
Division of Genome Diagnostics
555 University Avenue, Black Wing, Room 3416
Phone: 416-813-7200 ext. 2
Hours: Monday to Friday, 8 a.m. to 4:30 p.m.
Off hours: Please send to Rapid Response Laboratory, 555 University Avenue, Room 3642
Email Molecular Lab: firstname.lastname@example.org
Email Cytogenetics: email@example.com
Background and clinical significance
An increase in sister chromatid exchange frequency is observed in Bloom syndrome patients.
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Toll Free: 1-855-381-3212