The double test is done to investigate the possibility of having common chromosomal disorders, especially Down syndrome, in your baby.

In the first part of this test, the neck thickness and nasal bone of the baby are examined by ultrasonography. Increased nuchal thickness and absence of nasal bone are conditions that increase the risk of Down syndrome in the baby.

  • In the second stage of the test, blood is given. The level of B-hCG and PAPP-A hormones in the blood is measured.
  • Evaluation of all of these gives you a result that includes the risk of double testing.

Please click here to make a double test appointment.