Medical Genetics Laboratories at Baylor College of Medicine

Chromosomal Microarray Analysis (CMA)

Please call 1-800-411-4363 prior to sending sample. Kits for submitting Prenatal CMA samples are available.

All tubes must be labeled with the patient's name and date of birth, and a completed Prenatal CMA Requisition Form or a CMA Requisition Form with CMA selected for postnatal samples. The original signed informed consent must accompany each sample. Ship specimens for overnight delivery at room temperature. Please notify the laboratory of incoming samples. Please call the laboratory to discuss billing for CMA or visit the CMA billing information page.

Important Links for CMA testing:

Publications
Reference Tables - Includes disorder lists from previous array versions

Postnatal Samples:

Prenatal Samples:

The 105K CMA Prenatal Reporting Guidelines:

BCM-Medical Genetics Laboratories will not report copy number changes:

smaller than 300kb in the backbone regions
less than 500kb with no known genes at the time of the report
The regions below have been excluded from the 105K Prenatal CMA:
- Mitochondrial Genome
- 15q11BP1-BP2 interval deletion & duplication
- AZFa & AZFb
- Bipolar disorder with 8q21.13 deletion
- Chronic Pancreatitis
- Hereditary pancreatitis
- Schizophrenia epilepsy

Please contact one of our genetic counselors at (800) 411-4363 prior to prenatal sample submission.