Laboratory Test Information Guide

Details for Fragile-X

Test Name: Fragile-X
Alternate Name(s): Molecular testing for Fragile-X
Laboratory: Cytogenetics (VH)
Specimen Type: 4 mL peripheral blood in a Lavender EDTA Vacutainer tube
Collection Information: 4 mL peripheral blood in an EDTA vacutainer should be collected and sent directly to the DNA Diagnostic Laboratory in Kingston (see Referred To). Specimens can also be sent to Molecular Diagnostics at LHSC for referral to Kingston.
Test Schedule: Direct molecular testing for detection of Fragile-X Syndrome is available at Kingston General Hospital which has been funded by the Ministry of Health to provide this service for the Province of Ontario. Any questions or concerns should be directed through the DNA Diagnostic Lab at Kingston General Hospital. See Comments.
Turnaround time from when specimen
is received in testing laboratory:
4-6 weeks
1-2 weeks
Reference Range: See report
Effective Date: 2005-08-01
Revised Date: 2018-11-23
Critical Value: See report
Interpretive Comments:  
Special Processing: Avoid collecting and/or shipping specimens on Thursdays and Fridays.
Comments: For additional information please contact the DNA Diagnostic Laboratory @ Kingston General Hospital (613) 548-3232 Ext. 4134. For other Cytogenetics Tests please refer to the Cytogenetics Laboratory Web Page:
Method of Analysis:  
Critical Information Required:  
Storage & Shipment: Store and transport specimen at room temperature (15-25C). Send specimen within 24 hours of collection.
System Codes: 
Referred To: Fragile-X Testing
DNA Diagnostic Laboratory
Department of Pathology
Rm 414, Douglas Wing
Kingston General Hospital
76 Stuart St.
Kingston, Ontario
K7L 2V7
Tel: (613) 548-3232 ext. 4134
Toll Free: 800-567-5722 ext.4134
Fax: (613) 544-9948

Questions? Comments? Contact Laura Gopaul