Chromosomal Microarray Blood (High Resolution)

Chromosomal Microarray Blood (High Resolution) is an advanced genetic test that examines the entire genome for tiny chromosomal gains and losses, known as copy number variations (CNVs). These genetic changes may be associated with developmental delays, intellectual disabilities, congenital anomalies, autism spectrum disorders, and certain genetic conditions. Using high-resolution technology, the test can detect abnormalities that may not be identified through conventional chromosome analysis. The results help clinicians understand the genetic basis of unexplained symptoms and support accurate diagnosis, management, and genetic counseling.

Who Should Get This Test Done?

This test may be recommended for:

●      Individuals with unexplained developmental delay or intellectual disability.

●      Children with autism spectrum disorder or multiple congenital anomalies.

●      Individuals with features suggesting a genetic syndrome but no confirmed diagnosis.

●      Individuals with unexplained growth or developmental concerns.

●      Individuals advised by a geneticist or healthcare provider for detailed chromosomal evaluation.

Why Consider This Test?

This test can be considered because it provides a comprehensive analysis of the genome to detect clinically significant chromosomal abnormalities. It helps identify genetic causes of unexplained developmental or congenital conditions, supports early and accurate diagnosis, guides treatment and long-term care decisions, assists in genetic counseling for families, and may reduce the need for multiple diagnostic investigations.

More Information

Unlike routine chromosome studies, a high-resolution chromosomal microarray can identify very small deletions and duplications across the genome. It is widely used as a first-line genetic test for individuals with developmental and congenital disorders. The findings are interpreted alongside the patient’s clinical history to provide meaningful insights that can support personalized medical care and future family planning.

Other Names

●      Chromosomal Microarray Analysis (CMA)

●      High-Resolution Chromosomal Microarray

●      Genome-Wide Chromosomal Microarray

●      Array Comparative Genomic Hybridization (Array CGH)

●      SNP Microarray Analysis

●      Copy Number Variation (CNV) Analysis