Blood Drug Testing

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Summary: This article describes the way patterns seen on the ANA test can be used to determine the specific antinuclear antibody that s present This in turn helps determine wha ANA Patterns Diagnoising Lupus and Related Connective Tissue Disorders Antinuclear antibodies ANA which occur in a number of different autoimmune disorders including systemic lupus erythematosus SLE and Sjogren s syndrome target specific protein antigens present in the body s nucleated cells The preferred method of testing for ANA is the immunofluorescent IFA technique which is considered the gold standard Alternative methods such as the enzyme linked ELISA method are more likely to cause false positive results Another benefit of the IFA ANA test is that the ANA detected in the IFA results yield distinctive staining patterns in the nucleus or cytoplasm of the reagent cells used to perform the test These staining patterns offer specific clues as to which particular antinuclear antibody or antibodies may be present ©

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