Multiple choice

Which of the following procedures usually involves in injecting a small flexible plastic tube through the vagina into the uterus?

  1. Amniocentesis

  2. Chorionic villi sampling

  3. Alpha-feto protein screening

  4. A glucose tolerance test

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This method is used to draw out a sample of chorion tissue for cell culturing. As in amniocentesis, ultrasound monitoring helps to prevent damage to the unborn child during the sampling procedure.