MLT 106 Unit 6 Questions with All Correct Answers
Which test is used to predict anemia in the fetus by indicating direction of blood flow using ultrasonography? - Answer-Color Doppler MCA-PSV
True or false: The DAT on the cord or neonatal RBCs is the most important diagnostic test. - Answer-Tr...
Which test is used to predict anemia in the fetus by indicating direction of blood flow
using ultrasonography? - Answer-Color Doppler MCA-PSV
True or false: The DAT on the cord or neonatal RBCs is the most important diagnostic
test. - Answer-True
The relative concentration of all antibodies capable of crossing the placenta and
causing HDFN is determined by: - Answer-Antibody titration
Reduces the amount of hemolysis by competing with the mothers antibodies for the Fc
receptors on the macrophages in infant's spleen: - Answer-Intravenous Immune
Globulin (IVIG)
Most centers treating for HDFN use group _____ RBCs for intrauterine as well as
neonatal transfusions. - Answer-O NEG
What tests will the presence of an autoantibody complicate? - Answer--ABO/Rh typing
-Antibody screening
-Compatibility testing
If a patient's RBCs are coated with autoantibody, the patient may present with: -
Answer--Serological ABO discrepancy
-A positive Rh control
-A positive DAT
True or false: Immune hemolytic anemia is defined as a lengthened RBC survival
mediated through humoral antibody production. - Answer-False
Before the presence of an AIHA is established, it's important to verify presence of: -
Answer-Immune-mediated RBC destruction
Evidence for increased RBC destruction includes: - Answer--Increase in reticulocyte
count
-Increase in unconjugated bilirubin levels
-Increase in lactate dehydrogenase levels
-Decrease in haptoglobin
True or false: Uncompensated anemia occurs when RBC production will nearly equal
the rate of RBC destruction. - Answer-False
, The test DAT and characterization of the autoantibody is used to confirm what? -
Answer-AIHA
What tests doe the cold autoagglutinins affect? - Answer-ABO typing, Rh typing, and
DAT
True or false: Autoanti-I is the most commonly encountered cold autoantibody that is
directed against an Ag found on RBC of most donors. - Answer-True
Most cold reactive autoantibodies have _____ specificity. - Answer-Anti-I
True or false: Anti-H distinguishes between cells of various ABO groups. - Answer-True
Group _____ and _____ cells react best with anti-H because they have the largest
amount of H antigens. - Answer-O; A2
What cold autoagglutinin is found more commonly in the serum of A1 and A1B
individuals? - Answer-Anti-IH
Which hepatitis virus is dependent upon the presence of the Hepatitis B virus? -
Answer-Hepatitis D virus
What method is currently being used in the detection of HIV infection in humans? -
Answer-Enzyme immunoassay
What is known to cause meningoencephalitis as a human, avian and equine
neuropathogen? - Answer-West Nile virus
An ABO HDFN in a group B infant group of a group O mother is more commonly found
in which population? - Answer-African American
The detection of fetal red blood cells containing Hgb F is shown as _____ in the
Kleibauer-Betke test. - Answer-Pink
What type of transfusion is used to prevent kernicterus? - Answer-Exchange transfusion
During 10-12 weeks gestation, what can be used to test for the presence of the D
antigen in the fetus? - Answer-Fetal DNA testing
Cold AIHA is sometimes associated with infection in: - Answer-Mycoplasma
pneumoniae
Immune hemolytic anemias may be classified in what categories? - Answer-
Alloimmune, autoimmune, and drug-induced
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through EFT, credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Scholarsstudyguide. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R224,22. You're not tied to anything after your purchase.
