Explain any one invasive method of pre-natal diagnosis.
Answers
Prenatal diagnosis means diagnosis before birth. It is a way for your doctor to see if your developing baby has a problem. The two main methods are amniocentesis and chorionic villus sampling (CVS). These tests help find genetic disorders before birth.
In this procedure, a sample of amniotic fluid (fluid around the baby) is removed from your uterus. A doctor inserts a long, thin needle through your abdomen into your uterus. He or she withdraws a small amount of fluid. The fluid is sent to a laboratory for evaluation. In the lab, the fluid can be tested for:
1-genetic abnormalities
2 - infection
3 - signs of lung development.
Your body will make more fluid to replace the fluid that is taken out. The baby will not be hurt during the procedure. Some women feel mild cramping during or after the procedure. Your doctor may tell you to rest on the day of the test. Usually you can resume normal activity the next day.