Pathology Handbook

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PLEASE NOTE: Recent changes have been made to this Test


 Recent changes for Microarray

Recent changes for Microarray
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Microarray

Alternative Names:Microarray (Paediatric)
SNP microarray
CGH array
chromosome microarray
MA
Molecular Karyotype
Mol Karyotype
Downs Syndrome (Post Natal)
Laboratory:Molecular
Test Code:CHM
Medicare rebatable:No
Registration Instructions:

Pathologist approval required for oupatient requests.  RPMI not necessary however if added will not affect test.

EDTA or Salivary kit are the required samples. For product of conception (POC) see "Cytogentics - Products of Conception"

Private: $595

Public (Northern Health request form): No charge 

Non-Medicare patients: $510.40 - $589.90

Microarray and Fragile X testing can be performed on one EDTA specimen  

 

Specimen Types:EDTA
Saliva
Container Types:
EDTA
Salivary Kit
EDTA
Adults Volume or Mass:5 mL
Minimum/Paediatric Volume or Mass:1 mL
Collection & Request Instructions:Collect at ambient temperature

Adult-child: 5ml EDTA

Infant: 0.5-1.0ml EDTA

Transport Instructions:Room Temperature
Processing Instructions:Do Not Centrifuge
Assay Frequency:Fortnightly
External Laboratory:Victorian Clinical Genetics Service
  External Laboratory details...
External Transport Instructions:Send at 4'C with Ice Pack
Method:

A chromosome microarray is a powerful tool used to look at sub microscopic changes in our genetic information that may impact health or development. Microarray is considered the gold standard test for the investigation of intellectual disability and developmental and behavioural concerns such as autism spectrum disorders and congenital malformations.

Please note, a conventional chromosome analysis or specific Prader-Willi/Angelman syndrome test can not be performed at the same time as a microarray analysis due to Medicare constraints.

A conventional chromosome analysis is recommended for neonates with suspected trisomy eg. Down syndrome.

Additional Notes:

Please see link below for external laboratory requirements

http://www.vcgs.org.au/pathology/sections/Cytogenetics/?docid=8bf38b05-46ca-4ebf-b3cf-992e00eff2b0

Routine analysis: 2-3 weeks

Urgent: 8-10 days

David Francis

Phone (03) 8341 6258 (Lab)

Phone (03) 8341 6282 (direct)

USEFUL LINKS

 

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