HDFN Flashcards
other name for HDFN
erythroblastosis fetalis
neonatal testing
testing of newborn up to 28 days after delivery
perinatal testing
testing from 28 weeks of gestation to 28 days after delivery
HDFN can only occur if
red cell antibodies from the mother must be IgG
fetus contains an antigen that is absent from the mother
the antigen in the fetus is well developed
most common type of HDFN during the first pregnancy
ABO
most common HDFN during the second pregnancy
Rh ALSO THE MOST SEVERE TYPE OF HDFN
treatment for ABO HDFN
phototherapy
treatment for Rh HDFN
exchange transfusion
prenatal testing is done:
before delivery; FIRST TRIMESTER
purpose of prenatal/antepartum testing
to identify D-negative women who are candidates for RhIG
to identify women with antibodies capable of causing HDFN
ultrasound techniques
detect a fetal anemia
COLOR DOPPLER ULTRASONOGRAPHY
amniocentesis
change in optical density plotted on Liley graph from 27 to 40 weeks of gestation
if Rh- mother with Rh+ baby and negative rosette test
give 1 vial/dose of RhIG
who are not candidates for RHIG
mother with already active anti-D
Rh neg mother with Rh neg baby
candidates for RHIG
Rh neg mother with Rh pos baby and no antibodies formed from the previous pregnancy
