HDN fetal Flashcards
1
Q
what tests are run on an infant post partum
A
- blood type
- DAT
- elution if DAT positive
2
Q
what is the difference between fetus and newborn
A
- fetus: unborn
- newborn: infant from birth - 4 months old, AB antibodies developing
3
Q
name the most common HDFN cause
A
ABO
- O mom, A or B baby
- least severe
4
Q
immune hydrops fetalis
A
- complication of severe Rh incompatibility
- immune hydrops can cross placenta and cause HDN
5
Q
non immune hydrops fetalis
A
- more common
- disease or medical condition affects bodys ability to manage fluid
6
Q
describe ulrasonography
A
- measure of amount of amniotic fluid
- determines size and location of placenta
- asses fetal edema, liver and spleen size
7
Q
describe amniocentesis
A
- evaluates degree and significance of hemolysis
8
Q
describe cordocentesis
A
- venipuncture of umbilican vein
- determines H/H and bilirubin levels
9
Q
list the three types of jaundice therapy for a baby
A
- photo: mild
- IVIG: control hemolysis action
- exchange: moderate to severe jaundice w/ risk of kernicterus
10
Q
what does an exchange transfusion do
A
- corrects anemia w/o expanding blood volume
- removes sensitied RBCs
- reduces levels of bilirubin and maternal Ab
- provides albumin for binding bilirubin
11
Q
how much blood loss can a neonate not tolerate?
A
> 10%
12
Q
what is the purpose of blood warmers in fetal transfusions
A
- reduce hypothermia risk
13
Q
indications for platelet or plasma transfusion
A
- platelet count <50,000
- impaired platelet function
- 5-10mL/kg body weight dosae
14
Q
describe ECMO
A
- prolonged treatment removes CO2 and replenishes O2
- used for cardiac surgery recovery
