Laboratory Test Information Guide

Details for Ataxia Telangiectasia, Breakage Study

Test Name: Ataxia Telangiectasia, Breakage Study
Alternate Name(s): Chromosome Analysis, Breakage Study, Ataxia Telangiectasia
Breakage Study, Ataxia Telangiectasia
Laboratory: Cytogenetics (VH)
Specimen Type: 4-6 mL peripheral venous blood, in a sterile, sodium heparin vacutainer. If <3 mL is collected, it must be in a 3 mL Vacutainer to allow for appropriate sample to anticoagulant ratio.

Note: A 6 mL control sample should also be sent (see Collection Information)
Collection Information: All blood specimens should be collected at room temperature (15-25ºC) and sent to the laboratory within 24 hours (baby’s blood should be sent STAT for receipt within the same day). Do not freeze, heat, open or separate sample (must maintain sterility). Lithium heparin or EDTA specimens are unacceptable. All specimens should contain at least two patient identifiers.

Note: An age/sex match control is required and should be collected and received at the same time as the patient sample.
Requisition: CYTOGENETICS REQUISITION must include patient's name, address, Ontario Health Insurance Number, PIN (if applicable), originating location, Dr's full name and address, test requested, specimen type and pertinent clinical information
Test Schedule: As required
Turnaround time from when specimen
is received in testing laboratory:
 
Routine
4 weeks
Stat
 
 
Reference Range: See final report
Effective Date:  
Revised Date: 2015-10-14
Critical Value: N/A
Interpretive Comments: See final report
Special Processing: An age/sex match control is required and should be collected and received at the same time as the patient sample.
Comments: The Cytogenetics Lab is staffed from 0700-1700 (Monday-Friday), Ext. 78974 (office), or 75714 (lab).

For additional information please refer to the Cytogenetics Web Page
Method of Analysis: Cell culture, Chromosome Karyotyping
Critical Information Required: An age/sex match control is required and should be collected and received at the same time as the patient sample.
Storage & Shipment: If unable to transport immediately, store at 4oC and transport at room temperature (15-25oC) within 24 hours.
System Codes: 
Cerner
CG-Routine Blood
 
Referred To:  

Questions? Comments? Contact Laura Gopaul