Week 4 Flashcards

1
Q

Screening cells for the detection of alloantibodies will detect:

A

Anti-A1

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2
Q

Which of the following antigens is not expressed on cord blood cells?

A

Le a

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3
Q

The Ab screen is essential to the safety of blood transfusion. The screening test may be conducted instead of and AHG crossmatch, this is usually:

A

A two or three cell screen cell procedure

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4
Q

Ab screen cells consist of what type of red cells?

A

O cells

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5
Q

Which of the following techniques/reagents is useful in the detection of Anti-K alloantibody?

A

Indirect antiglobulin test

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6
Q

A screen cell test was done, and the result was a mixed field agglutination at Rm temp. It was also positive at 37C where it continued to exhibit a mixed field agglutination. What is a probable antibody group for this antibody?

A

Lutheran blood group system

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7
Q

Which blood group is frequently implicated as the cause of delayed hemolytic transfusion reactions?

A

Kidd blood group antibodies

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8
Q

Which blood group system includes the Jsa (Sutter) and Kpa (Penny) antigens?

A

Kell

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9
Q

Enzyme treated reagent red cells used in antibody ID does not enhance the re-activity of which antibody?

A

anti-N

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10
Q

Which antibody is clinically insignificant?

A

anti-P1

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11
Q

Which antibody is IgM?

A

anti-N

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12
Q

McLeod phenotype is associated with:

A

Absence of Kx antigens

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13
Q

Cold alloantibodies are usually of which specificity?

A

anti-I

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14
Q

Individuals with the p phenotype are the only phenotype that can make:

A

anti-Tja

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15
Q

Which set of antibodies could you possibly find in a patient who has never been transfused or pregnant?

A

anti-B, anti-I, anti-Le a

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16
Q

An antibody shows strong agglutination reactions at Rm temperature with all screen and panel cells. The plasma is then tested against a Group O cord blood red blood cell and the reaction is negative. What antibody would you suspect is causing these reactions?

A

anti-I