Microarray (postnatal)
Overview
A microarray (chromosome and copy number variant analysis) is a powerful tool used to look at sub microscopic changes in our genetic information that may affect 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. This is also the preferred test for microdeletion syndromes.
Learn more about microarray use in the postnatal setting >
Test type
Genome-wide chromosome microarray (molecular karyotype)
Turnaround time
4-6 weeks.
Urgent in 8-10 days.
Cost
Bulk billed where eligible (#73292).
Non Medicare: up to $589.90
Relevant links
Notes
A conventional G-banded 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.