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Modern Blood Banking Study Set 1

Medicine

Quiz 20 :

Hemolytic Disease of the Fetus and Newborn

Quiz 20 :

Hemolytic Disease of the Fetus and Newborn

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Which red blood cell morphology is most characteristic in ABO HDFN and absent in Rh HDFN?
Free
Multiple Choice
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Answer:

C

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In HDFN, the IgG antibodies are directed against which antigen on the fetal red blood cells?
Free
Multiple Choice
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Answer:

B

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Why is suppression of erythropoiesis an advantage of exchange transfusions?
Free
Multiple Choice
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Answer:

B

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Immunization of the mother can be caused by as little as D-positive fetal cells.
Multiple Choice
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Which of the following treatments uses ultraviolet light to treat hyperbilirubinemia after the infant is delivered?
Multiple Choice
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All of the following are goals of an exchange transfusion except:
Multiple Choice
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What tests are indicated for cord blood specimens if the mother has made anti-K?
Multiple Choice
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What is the physiological mechanism of Rh-immune globulin?
Multiple Choice
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An O-positive mother gave birth to an A- negative baby. After 24 hours the newborn's bilirubin level rose to 18 mg/dL. A DAT performed on the cord blood specimen was positive with polyspecific AHG and anti-IgG reagents. It is probable that from maternal circulation is coating the newborn's red blood cells.
Multiple Choice
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Which of the following best describes the principle of the Kleihauer-Betke test?
Multiple Choice
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Why is the immediate spin eliminated in the prenatal antibody screen?
Multiple Choice
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Active immunization induced by Rh(D) antigen can be prevented by the concurrent administration of:
Multiple Choice
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Which severe outcome can be caused by indirect bilirubin levels greater than 18 mg/dL in the newborn?
Multiple Choice
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Why is reverse grouping omitted in neonate ABO grouping?
Multiple Choice
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Which of the following reagents can be used to determine the immunoglobulin class of anti-M?
Multiple Choice
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Due to a short supply of O-negative packed cells, an Rh-negative patient was transfused with 1 unit of Rh-positive red blood cells. Calculate the number of Rh-immune globulin vials needed to protect against 250 mL of Rh-positive packed cells.
Multiple Choice
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A 300-µg dose of Rh-immune globulin contains sufficient anti-D to protect against how much whole blood?
Multiple Choice
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How is an intrauterine transfusion performed?
Multiple Choice
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All of the following are characteristic of ABO hemolytic disease of the fetus and newborn (HDFN) except:
Multiple Choice
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A cord blood specimen from a jaundiced infant should be tested for which of the following?
Multiple Choice
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