Test Name: AFB
Methodology: Special Stains
Acid-Fast Bacillus (AFB) Stain Kit is intended to identify acid-fast bacteria, such as Mycobacterium , in tissue sections on the Artisan™ Link and Artisan™ Link Pro Staining Systems. Application of Carbol Fuchsin stains acid-fast bacteria red, followed by decolorization of all tissue elements except the acid-fast bacteria. A Methylene Blue counterstain is then applied to impart a blue color to all background tissue elements.
A formalin-fixed, paraffin-embedded (FFPE) tissue block is preferred specimen type or one (1) unbaked, unstained slide cut at 4-5 microns for H&E staining (required) and two to three (2-3) positively charged unstained slides cut at 3-4 microns for each test/antibody ordered.
Storage and Transport
Use cold pack during transport of paraffin blocks and unstained slides. Cold pack should not be placed in direct contact with the specimen during shipping
Specimen Rejection Criteria
Turn Around Time (TAT): 2-3 Days
CPT Codes*: 88312
*The CPT codes provided with our Test Descriptions are based on AMA guidelines and are for informational purposes only. Correct CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed.