CLINICAL INDICATION
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Intellectual disability/ developmental delay
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Multiple congenital anomalies/ dysmorphism
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Autism/autistic spectrum disorders
TESTING
Microarray Testing
LABORATORY REQUISITION REQUIRED
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IWK Clinical Genomics Postnatal Microarray Requisition
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Signed Consent Form (page 2 of requisition)
SAMPLE REQUIREMENTS
5 ml peripheral blood in EDTA (purple top) tube
(2 ml peripheral blood (EDTA) from newborn < 1 mo.)
All specimens must be sent with a completed requisition. Specimen and requisition must both be labelled with the following matching identifiers:
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Patient's full name (first and last)
AND -
Patient's Health Card Number or Hospital Identification Number
Any specimens received without the appropriate requisition or identifiers may be rejected.
TURN AROUND TIME
6 weeks routine
If urgent – contact laboratory
FOLLOW-UP TO ABNORMAL MICROARRAY
(as indicated on Microarray report)
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Targeted microarray analysis, MLPA, or other targeted molecular testing:
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3-5 ml peripheral blood (EDTA) from both biological parents
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Chromosome Analysis
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3-5 ml peripheral blood (sodium heparin) from both biological parents
AND -
2 ml peripheral blood (sodium heparin) from proband
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