Genetic tests are performed on a sample of blood, hair, skin, amniotic fluid (the fluid that surrounds a fetus during pregnancy), or other tissue. For example, a procedure called a buccal smear uses a small brush or cotton swab to collect a sample of cells from the inside surface of the cheek.

How long does a genotype test take?

How long does it take to get genetic test results? Commercial labs often give faster results (usually within 2 to 4 weeks) than research centers (a minimum of 4 weeks, often longer).

What is a genotype test called?

Genetic testing involves examining your DNA, the chemical database that carries instructions for your body's functions. Genetic testing can reveal changes (mutations) in your genes that may cause illness or disease.