The procedure by which amniotic fluid is obtained for testing is?

Correct option is B

Sol. Amniocentesis is a prenatal procedure done between 15–20 weeks where a needle is inserted into the uterus to collect amniotic fluid. It is used to detect chromosomal abnormalities, neural tube defects, and fetal infections. It carries minimal risk when done under ultrasound guidance.
Explanation of each option:
· (a) Chorionic villus sampling – Involves taking placental tissue, not amniotic fluid; done earlier (10–13 weeks).
· (b) Amniocentesis – Correct. A standard procedure for sampling amniotic fluid for genetic testing.
· (c) Fetal blood sampling – Also known as cordocentesis; takes blood from umbilical cord, not amniotic fluid.
· (d) None of these – Incorrect because option (b) correctly identifies the procedure.