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Placental transfer of antibodies is a critical mechanism by which maternal antibodies are passed to the fetus, providing passive immunity that protects the newborn against infections. This transfer primarily involves immunoglobulin G (IgG) antibodies and occurs through specific receptors in the placenta, peaking in the third trimester of pregnancy.
Concept
Placental antibody transfer is a critical process during pregnancy where maternal antibodies are transferred to the fetus through the placenta, providing the newborn with passive immunity against infections. This transfer primarily involves immunoglobulin G (IgG) antibodies and is most effective in the third trimester, offering protection until the infant's own immune system matures.
Concept
A non-stress test is a prenatal evaluation used to check on a baby's health by measuring the fetal heart rate and its response to movement, without applying any physical stress to the fetus. It is a non-invasive procedure typically performed in the third trimester, especially for high-risk pregnancies, to ensure the well-being of the fetus.
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