BB LEC - Causes of ABO Discrepancies Flashcards

1
Q

A or B subgroups

A

forward

missing Ag

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2
Q

Disease (leukemia)

A

forward

missing Ag

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3
Q

Acquired B

A

forward

extra AG

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4
Q

Rouleaux

A

forward
extra AG
Backward extra Ab

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5
Q

Cold AutoAb

A

forward

extra AG

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6
Q

Wharton’s Jelly

A

forward

extra AG

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7
Q

Group O transfusions

A

forward

mixed field

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8
Q

SC Transplant

A

forward

mixed field

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9
Q

A3 or B3 phenotype

A

forward

mixed field

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10
Q

Newborns, elderly, immunocompromised

A

backward

missing ab

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11
Q

anti-A1

A

backward

extra Ab

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12
Q

cold alloantibodies

A

extra Ab

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13
Q

passively acquired antibody

A

extra Ab

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