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Sample Page

The page below is a sample from the MediaLab course, Antinuclear Antibody Testing: Methods and Pattern Interpretation.

Learn about Compliance & CE courses available for clinical laboratories and individual medical technologists.

Overview

The presence of more than one ANA pattern in a sample is referred to as a mixed ANA pattern.

The most common of these is a mixture of Homogeneous and Speckled, but any combination is possible.

Frequently, titering the sample will facilitate the identification of multiple patterns and allow for each pattern to be identified. When multiple patterns are encountered each pattern and its respective titer should be reported. Follow-up testing should be suggested based on the patterns present. In many cases both anit-dsDNA and anti-ENA testing are suggested.

Mixed ANA patterns:

  • Can be any combination of patterns
  • May only see one pattern at first
  • Mitotics may be hard to find
  • Tittering helps to separate patterns and makes identification easier
  • Report all patterns and respective titers
  • Suggest follow-up testing based on patterns

 

 

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