MATERNAL RLE midterm Flashcards
is a protein that can be found on the surface of red blood cells
The Rh factor
other name for RH factor
rhesus factor
rhesus, factor was discovered in
1940
who is the discoverer of RH factor
K. Landsteiner and A. S. Wiener
A person with the Rh factor on his or her red blood cells is said to be
Rh-positive (Rh+ ).
Since this person has the factor, he or she will not make
anti-Rh antibodies.
A person without the Rh factor on their red blood cells is said to be
Rh-Negative (Rh- ).
if RH negative This person WILL produce
anti Rh antibodies.
If mother is Rh- and the fetus is Rh+, A condition called
Erythroblastosis Fetalis
Rh Antigen, also called
Rhesus antigens
are transmembrane proteins expressed at the surface of erythrocytes.
Rhesus antigens
The Rh antigens are inherited as a genetically linked group known as
a haplotype.
Rh antigens are highly immunogenic, the ___ antigen is most potent
D
Exposure to less than 1 ml of Rh-positive red cells can stimulate
Ab production in an Rh-negative person.
is an inherited protein found on the surface of red blood cells.
Rhesus (Rh) factor
determines the expression of the D antigen
RHD gene
determines the expression of the C, c, E, and e antigens
RHCE gene
is one of the most polymorphic and immunogenic systems known in humans.
Rh blood group system
the second most important system.
Rh system
is the most common cause of severe HDN and can cause in Utero death.
anti-D
A problem can occur when a woman who has Rh-negative blood becomes pregnant with a baby that has Rh-positive blood. This is called
Rh incompatibility
If the blood of an Rh-positive baby mixes with the blood of an Rh-negative mother during pregnancy or delivery, the mother’s immune system makes antibodies. This antibody response is called
Rh sensitization
PUFT
Para-perirenal ultrasonographic fat thickness
NSVD
Normal spontaneous vaginal delivery
CVS
chorionic villus sampling
An Rh-negative woman also can make antibodies after:
Miscarriage
Ectopic pregnancy
Induced abortion
Rh incompatibility also can cause
jaundice in a newborn
The process in which mother’s body will try to fight them off by producing antibodies against them.
SENSITIZATION
is when a baby dies in the womb after 20 weeks of pregnancy.
Stillbirth
Rhesus disease causes a build-up of excessive amounts of a substance called
bilirubin
a build-up of bilirubin in the brain can lead to a neurological condition called
kernicterus.
is a condition in which a baby’s red blood cell volume falls below normal levels while the baby is developing in the womb
Fetal anemia
These check for Rh positive antibodies in your blood.
Blood tests
This test can show enlarged organs or fluid buildup in your baby.
Ultrasound
Maternal Blood test
The Kleihauer-betke test or flow cytometry
Indirect coombs test
Fetal Blood test
The direct Coombs test
Blood count
Billirubin (direct & indirect)
This condition happens when your baby’s organs aren’t able to handle the anemia.
Hydrops fetalis
Are Designed to Build Immunity in a Patient
The goal is that the individual’s immune system will create antibodies for those antigens, and become immune to the associated illness.
Prophylactic Vaccines
The human ABO blood groups were discovered by Austrian-born American biologist
Karl Landsteiner in 1901
found that there are substances in the blood, antigens and antibodies, that induce clumping of red cells when red cells of one type are added to those of a second type.
Landsteiner
The surface of the red blood cells contains A antigen, and the plasma has anti-B antibody.
Group A