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Chromosomal Microarray Analysis (CMA)

Referred out for testing

Source Blood
Mnemonic CGLMA
 
Specimen Requirements

Newborn - 6 months:
1 to 2 mL blood in a green top sodium heparin tube AND 1 to 2 mL blood in a lavender top EDTA tube.

Children and Adults:
3 to 4 mL blood in a green top sodium heparin tube AND 3 to 4 mL blood in a lavender top EDTA tube.

Specimen Handling

DO NOT centrifuge or separate specimen; store and transport at room temperature.  Transport both tubes of blood, with requisition to  the Cytogenetics Laboratory, Alberta Children's Hospital.

PSC:
Transport specimen at room temperature to DSC.

RRL:
Transport specimen at room temperature to ACH.

Blood collected outside of regular hours will be stored at room temperature in ACH Chemistry or in DSC Referrals.  Samples stored over the weekend in DSC Referrals will be forwarded to ACH Cytogenetics Lab on Monday morning.

Regular hours: Monday to Friday 08:00 - 16:15

For urgent inpatient requests, contact the Medical Geneticist on call.

Additional Information

The physician must complete an AHS "Chromosomal Microarray Requisition" available at www.albertahealthservices.ca/lab.page8667.aspx

Testing Location ACH Cytogenetics Lab
Testing Frequency
Alternate Name(s) Array CGH
 
Reference Interval