The **Array Chrome test** (Chromosomal Microarray Analysis / Array CGH) is an advanced genetic diagnostic test used primarily to evaluate pediatric health and developmental conditions. By scanning an individual's entire genome sequence at high resolution, it identifies tiny, sub-microscopic chromosomal abnormalities—specifically copy number variations (CNVs) like microdeletions or microduplications of DNA—that traditional karyotyping misses.
Healthcare providers commonly order this blood test for children displaying developmental delays, intellectual disabilities, autism spectrum disorders, unexplained seizures, or congenital malformations. Identifying these subtle genetic changes helps clinicians pinpoint underlying medical causes, tailor personalized treatment plans, and provide informed genetic counseling to families.