What does it mean to have a positive antibody screen?

An RBC antibody screen is used to screen an individual's blood for antibodies directed against red blood cell (RBC) antigens other than the A and B antigens. It is performed as part of a "type and screen" whenever a blood transfusion is anticipated or as part of prenatal testing of pregnant women.
A.

What does Coombs positive mean in newborn?

It means that a blood test, called a Coombs test, or Direct Antibody Test (DAT), was done on your baby and was positive. This test is frequently performed on newborn babies. Usually the blood is taken from the baby's cord while it is attached to the placenta following delivery. Sometimes it is taken from the baby.
  • What does it mean Coombs test is negative?

    A negative Coombs test indicates that the fetus is not presently in danger from problems relating to Rh incompatibility. An abnormal (positive) result means that the mother has developed antibodies to the fetal red blood cells and is sensitized.
  • When can PKU testing be done?

    The blood sample for PKU is usually taken from your baby's heel (called a heel stick). The test is done in the first few days after birth, as early as 24 hours after birth. In some areas, the test may be repeated within the first week or two after birth.
  • What is hemolytic disease of the newborn?

    Hemolytic disease of the newborn, also known as hemolytic disease of the fetus and newborn, HDN, HDFN, or erythroblastosis fetalis, is an alloimmune condition that develops in a peripartum fetus, when the IgG molecules (one of the five main types of antibodies) produced by the mother pass through the placenta.
B.

What does positive antibodies mean?

Your test is positive if it finds antinuclear antibodies in your blood. A negative result means it found no ANAs. A positive result may mean that you have an autoimmune disease such as lupus. About 95% of people with lupus will test positive for antinuclear antibodies.
  • What does positive antibodies mean?

    Your test is positive if it finds antinuclear antibodies in your blood. A negative result means it found no ANAs. A positive result may mean that you have an autoimmune disease such as lupus. About 95% of people with lupus will test positive for antinuclear antibodies.
  • What does it mean to have a positive antibody screen?

    An RBC antibody screen is used to screen an individual's blood for antibodies directed against red blood cell (RBC) antigens other than the A and B antigens. It is performed as part of a "type and screen" whenever a blood transfusion is anticipated or as part of prenatal testing of pregnant women.
  • Can Ana blood test detect cancer?

    There can be abnormal blood tests, including autoantibodies (rheumatoid factor or RF, and antinuclear antibody or ANA), and tests looking for inflammation such as erythrocyte sedimentation rate or ESR. There are antibodies in the blood that can be found in many, but not all patients with the Sjögren's syndrome.
C.

What does it mean if Coombs test is negative?

Indirect Coombs test. A negative test result means that your blood is compatible with the blood you are to receive by transfusion. A negative indirect Coombs test for Rh factor (Rh antibody titer) in a pregnant woman means that she has not developed antibodies against the Rh-positive blood of her baby.
  • What is atypical antibodies in blood?

    Atypical antibody screen is used in pregnancy to detect atypical red blood cell antibodies in the mother's blood, which may be capable of causing hemolytic disease of the newborn. Also used for blood compatibility testing.
  • What is hemolytic disease of the newborn?

    Hemolytic disease of the newborn, also known as hemolytic disease of the fetus and newborn, HDN, HDFN, or erythroblastosis fetalis, is an alloimmune condition that develops in a peripartum fetus, when the IgG molecules (one of the five main types of antibodies) produced by the mother pass through the placenta.
  • How is a crossmatch performed?

    A crossmatch is performed prior to administration of blood or blood products (e.g. packed red blood cells). The purpose of the crossmatch is to detect the presence of antibodies in the recipient against the red blood cells of the donor. This sensitization usually occurs from a previous blood transfusion.

Updated: 1st October 2018

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