The term PGD, preimplantation genetic diagnosis, is often loosely used to refer to any testing performed on an embryo prior to it being transferred to the uterus. However, the distinction should be made between the terms PGD and PGS. 1  PGD, preimplantation genetic diagnosis, involves removing a cell from an IVF embryo to test it for a specific genetic condition (cystic fibrosis, for example) before transferring the embryo to the uterus.
Hepatitis B E Antigen (HBeAg) If the HBeAg test is positive, it means that: 1  You have high levels of the hepatitis B virus in your blood.  You may be very contagious to others.
Response from Dr. Rodriguez-Torres. This test means that you are immune to the Hepatitis B virus.You either had the vaccine for HBV,or you had the infection at some point ,and your body was able to eliminate the virus from ,and developed antibodies against it.This happens in around 98% of all acute HBV infections.esponse from Dr. Rodriguez-Torres. This test means that you are immune to the Hepatitis B virus.You either had the vaccine for HBV,or you had the infection at some point ,and your body was able to eliminate the virus from ,and developed antibodies against it.This happens in around 98% of all acute HBV infections.