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Author Question: The qualitative hemoglobinopathies cause disease by producing hemoglobin chains that are: a. Too ... (Read 142 times)

ashley

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on: Jun 25, 2018
The qualitative hemoglobinopathies cause disease by producing hemoglobin chains that are:
 
  a. Too long
  b. Produced in inadequate amounts
  c. Structurally altered
  d. Missing

Question 2

A type-A Rh-negative infant has spherocytes on his blood film and a weakly positive direct antiglobulin test. What antibody will most likely be found on the infant's red cells?
 
  a. IgG anti-A antibody
  b. IgM anti-A antibody
  c. D antibody
  d. Kell antibody


Ahnyah

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Reply #1 on: Jun 25, 2018
Answer to Question 1

ANS: C
Structural defects are present in the qualitative hemoglobinopathies.

Answer to Question 2

ANS: A
This occurs in infants whose mothers make an IgG anti-A (in this case) or anti-B at a low level. The disease is usually mild because most ABO antibodies are IgM and do not cross the placenta because of their large size.


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