Test guide
Karyotype Genetic Test
A karyotype test is a type of genetic testing . It looks at the size, shape, and number of chromosomes in a sample of cells from your body. Chromosomes are tiny "packages" in your cells that contain your genes . Genes carry information, called DNA , that controls what you look like and how your body works.
What it is for
A karyotype test looks for unusual changes in chromosomes in order to: Your health care provider can then use the results of a karyotype test to make important treatment decisions for you and/or your family members. Source: MedlinePlus, National Library of Medicine. Medical test information is public domain. Source identity and definition checked automatically on 2026-10-18. No individual clinical interpretation or human reviewer is asserted.
Limitations
Reference intervals and interpretation depend on the laboratory, specimen, method and clinical context. This source definition is educational information; it does not establish a diagnosis, product approval or suitability for an individual.
Also known as
- genetic testing, chromosome testing, chromosome studies, cytogenetic analysis
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