lab tests Flashcards

1
Q

ANA sensitivity

A

95-100% sensitive
NOT specific
do it only once

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2
Q

ANA levels can change with

A

age

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3
Q

Test that is highly specific for lupus

A

ds DNA

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4
Q

which 2 lupus related tests can correlate with disease activity - not always

A

dsDNA

Complement

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5
Q

Rheumatoid factor is

A

NOT a specific test for RA

and do it only once

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6
Q

A negative RF does not

A

EXCLUDE diagnosis of RA

and vice versa

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7
Q

a highly specific test for RA

A

Anti-CCP antibodies

also not useful in monitoring disease activity

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8
Q

which of the 2 inflammatory APRs does not change with age

A

CRP

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9
Q

APRs may be useful in which 2 diseases

A

PMR and GCA

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