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A health care provider orders tests to determine if a client has systemic lupus erythematosus (SLE). Which test result helps to confirm an SLE diagnosis?

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Answer: An above-normal anti-deoxyribonucleic acid (DNA) test

Explanation: Laboratory results specific for SLE include an above-normal anti-DNA test, a positive antinuclear antibody test, and a positive lupus erythematosus cell test. Because the anti-DNA test rarely is positive in other diseases, this test is important in diagnosing SLE. (The anti-DNA antibody level may be depressed in clients who are in remission from SLE.) Decreased total serum complement levels indicate active SLE

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