If the antibody screen is positive, in most cases the next step would be to perform antibody identification. If the screen is negative, there is a very high likelihood that no significant antibodies are present (though some rare antibodies against low-incidence RBC antigens could still be present).
WHAT IS A antibody screen?
The antibody screening test performed in a clinical laboratory and/or blood bank is designed to detect the presence of unexpected antibodies, especially alloantibodies in the serum to antigens of the non-ABO blood group system: Duffy, Kell, Kidd, MNS, P, and certain Rh types that are considered clinically significant.24 Jun 2019
What happens if you test negative for Covid antibodies?
If you test negative Some antibody tests will only detect antibodies from infection, not from vaccination with the virus that causes COVID-19. You could have a current infection, been recently infected, or been recently vaccinated.
What is the difference between antibody identification and antibody screening?
Antibody identification is performed after the positive results of antibody screening. In antibody identification serum or plasma is tested against a panel of reagent red cells. A panel like the screening cells, consists of group O reagent red cells that have been typed for most common antigens specificities.
What is antibody screen negative mean?
A negative antibody test tells you that you don't have harmful antibodies in your blood. If you're also Rh-positive, you can safely carry a baby with either a + or - blood type.17 Mar 2020