If you are diagnosed with strep, you will stop being contagious approximately 24 hours after starting an antibiotic. Antibiotics should help alleviate your symptoms within one or two days, although in some people the symptoms may last up to a week.
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.
These screening tests help your doctor find out the chance that your baby has certain birth defects, such as Down syndrome or trisomy 18. These tests can't show for sure that your baby has a birth defect. You would need a diagnostic test, such as a chorionic villus sampling, to find out if there is a problem. The first-trimester screening combines the results of two tests. Nuchal translucency test .