Test Name
CHROMOSOMAL MICROARRAY, CONGENITAL, BLOOD
Aliases
CONGENITAL SNP MICROARRAY, POSTNATAL ARRAY CGH, CONGENITAL ARRAY, ARRAY CHROME, CHROMOSOMAL ARRAY BLOOD
Abbreviations
ACGH, CMA, CNV+SNP ARRAY BLOOD
Department
INDIVIDUAL
Test Classification
MOLECULAR PATHOLOGY
Sub Department
GENETIC AND HEREDITARY DISORDERS
TAT Category
ELAPSED (CONTINUOUS) TIME
Estimated TAT
600
TAT Units
HOURS
Test Requirements
3 mL EDTA (purple top) vacutainer.
Clinical Utility
Primarily used for evaluation of pediatric patients with dysmorphic features, congenital abnormalities, autism, intellectual & learning disabilities, developmental delays etc. Diagnosis of congenital disorders arising from genomic copy number variations e.g. aneuploidies (e.g. trisomies, turner syndrome, Klinefelter syndrome), mosaicism >20%, microdeletions & microduplications within the assay's resolution. Cannot detect balanced chromosomal rearrangements, single gene disorders, mosaicism <20% etc. Higher risk of uncertain & incidental findings than karyotyping.
Last Review
26th Feb 2026