is thalassemia test necessary for pregnancy
Testing can be done before a baby is born to find out if it has thalassemia and determine how severe it may be. Tests used to diagnose thalassemia in fetuses include: 1  Chorionic villus sampling. 2  This test is usually done around the 11th week of pregnancy and involves removing a tiny piece of the placenta for evaluation.3  Amniocentesis.f your doctor suspects your child has thalassemia, he or she may confirm a diagnosis using blood tests. If your child has thalassemia, blood tests may reveal: 1  A low level of red blood cells. 2  Smaller than expected red blood cells.