Chromosome Analysis, Blood is a genetic test that examines the chromosomes in a blood sample to detect any abnormalities in the structure or number of chromosomes. This test is used to diagnose genetic conditions such as Down syndrome, Turner syndrome, and other chromosomal disorders. It can also be used to investigate unexplained developmental delays, infertility, or a family history of genetic conditions. The analysis helps identify variations in the chromosomes, including extra, missing, or rearranged chromosomes, providing critical information for diagnosis and genetic counseling.