Laboratory Test Information Guide

Details for Prenatal Microarray

Test Name: Prenatal Microarray
Alternate Name(s): Microarray
Array CGH
Genomic Microarray
Laboratory: Cytogenetics (VH)
Specimen Type: Amniotic Fluid
Fetal blood / Cord Blood
Maternal Blood Sample
Collection Information:  20 mL Amniotic Fluid
10-20 mg CVS (plus maternal EDTA blood 3 mL for all AF/CVS specimens)
2 X 1 mL fetal blood/Cord Blood
(EDTA & NaHep)
3mL EDTA Maternal Blood Sample
Requisition: PRENATAL MICROARRAY REQUISITION (must include patient's name, address, Ontario Health Insurance Number, PIN (if applicable), originating location, Dr's full name and address, and pertinent clinical information.

Follow up or parental samples, use the CYTOGENETICS REQUISITION
Test Schedule: Batched as required
Turnaround time from when specimen
is received in testing laboratory:
2 - 3 weeks
Reference Range: See final report
Effective Date:  
Revised Date: 2017-11-07
Critical Value:  
Interpretive Comments: See final report
Special Processing:  
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 Webpage.
Method of Analysis:  
Critical Information Required: Requisition / E-order with appropriate clinical information
Storage & Shipment: If unable to transport immediately, store at 4oC and transport at room temperature (15-25oC) within 24 hours.
System Codes: 
Referred To:  

Questions? Comments? Contact Laura Gopaul