An antinuclear antibody test shows a homogeneous pattern at a high titer. Which follow- up test is most useful…

Question

An antinuclear antibody test shows a homogeneous pattern at a high titer. Which follow- up test is most useful to support a diagnosis of systemic lupus erythematosus?

Accepted Answer

보기 3: Anti-double-stranded DNA

The antinuclear antibody test is a screening assay with limited specificity. Antibody to double-stranded DNA is highly specific for systemic lupus erythematosus and is used as a confirmatory test. Antimitochondrial antibody is associated with a different disease group.

Answer

보기 1: Rheumatoid factor

Answer

보기 2: Anti-mitochondrial antibody

Answer

보기 4: Cold agglutinin titer

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An antinuclear antibody test shows a homogeneous pattern at a high titer. Which follow- up test is most useful to support a diagnosis of systemic lupus erythematosus?

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