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Pediatric emergency medicine trisk 2926 2926

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(<1,000/mm3 ) at
least once (in the
absence of other
known causes
such as drugs,
portal
hypertension, and
TTP)

Immunologic
disorders

Antinuclear
antibody

Positive
antiphospholipid
antibody or
Anti-DNA—antibody
to native DNA in
abnormal titer or
Anti-Sm—presence of
antibody to Sm
nuclear antigen or
False-positive
serologic test for
syphilis known to be
positive by
Treponema pallidum
immobilization or
fluorescent


treponemal antibody
absorption test
An abnormal titer of
antinuclear antibody
by
immunofluorescence
or an equivalent
assay at any point in

Immunologic
criteria

(<100,000/mm3 ) at
least once (in the
absence of other
known causes
such as drugs,
portal
hypertension, and
TTP)

ANA

ANA level above
laboratory
reference range

Anti-ds DNA
antibody
Anti-Sm

Antiphospholipid

Anti-ds DNA above
laboratory
reference range,
except ELISA:
Twice above



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