Due to the insensitivity of the test, requests for AFB Stain only (AFS/6551) are not recommended and require Pathologist approval with the following exception:
If a patient has recent positive AFB smears or recent cultures positive with Mycobacterium tuberculosis complex, physician requests for AFB Stain only do not need Pathologist approval.
For AFB (TB) collect sputum in sterile container
For Cyclospora: collect stool in EcoFix.
For Cryptosporidium (non-stool source): Duodenal drainage, bile, or pulmonary sources in EcoFix
Place stool for Cyclospora or non-stool specimen for Cryptosporidium in Ecofix preservative vial within 1 hour of sample collection.
Stool for Cyclospora and Non-stool source for Cryptosporidium (Duodenal drainage, bile, or pulmonary source): EcoFix
For AFB (TB):
Refrigerated - 7 days
Ambient - 7 days
For Cyclospora or Cryptosporidium (Stool, duodenal drainage, bile, or pulmonary sources in Ecofix):