Skip to Main Content Go to Sitemap

Genomic SNP Microarray - Blood

Alternate test name

Lab area
Genome Diagnostics - Cytogenetics
Method and equipment
DNA extraction; Genomic Microarray Platform - Cytoscan HD SNP Array (Affymetrix)
Expected turn-around time
Newborns and expedited cases: 2-3 weeks Routine: 4-6 weeks
Specimen type

Peripheral blood

Genomic DNA

Specimen requirements

1-3 mL (0.5 mL) minimum for neonates; 6 mL for adults

  DNA; 1µg at ≥50ng/µl  minimum from an accredited laboratory                

Storage and transportation

Maintain at room temperature. Do not refrigerate or freeze.

Please note: A completed  SickKids Genomic SNP Microarray  requistion is required.

The reasons for referral listed on the submitted microarray requistion MUST meet the indications authorized by the MOHLTC, which include developmental delay/intellectual disability and/or multiple congenital anomalies.

Special requirements

Collect in EDTA tube

DNA; 1µg at ≥50ng/µl  minimum from an accredited laboratory   

Shipping information
The Hospital for Sick Children
Division of Genome Diagnostics
555 University Avenue, Black Wing, Room 3416
Toronto, ON
M5G 1X8
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:
Email Cytogenetics:
Background and clinical significance

Approximately 10-20% of individuals with unexplained developmental delay or multiple congenital anomalies will have a CNV considered to be clinically relevant.

Disease condition

Developmental delay and or multiple congenital anomalies

Back to Top