Actinomycete, High Performance Liquid Chromatography

Laboratory Fee Schedule

Procedure: MCD0276A

CPT: 87143

Actinomycete, High Performance Liquid Chromatography
Synonym(s): N/A
Requisition Form G-MYCO
Test Description Test for the identification of aerobic Actinomycete isolates, not Mycobacterium, referred to DSHS Laboratory
Pre-Approval Needed N/A
Supplemental Information Required N/A
Supplemental Form(s) N/A  
Performed on Specimens from (sources) Pure isolate from human sources
Sample/Specimen Type for Testing Aerobic Actinomycete pure isolate in liquid or on solid culture medium
Minimum Volume/Size Required

•   Liquid culture - 2.0 mL

•   Solid culture - Single mature colony

Storage/Preservation Prior to Shipping Ambient
Transport Medium N/A
Specimen Labeling

•   At least 2 patient specific identifiers:  First and last name as one identifier and a DOB or a unique patient specific identifier (e.g. Medical records number).

•   Specimen identification must match specimen submission form.

Shipping and Specimen Handling Requirements

•   Ship according to Dangerous Goods Regulations, IATA, and/or CFR 49

•   Category B shipping applies for unidentified isolates


•   High performance liquid chromatography (HPLC)

Turn-around Time HPLC is one test in a battery of tests that take 3 to 4 weeks for full identification.

•   HPLC may only detect the predominant organism in a mixed culture.

•   HPLC cannot definitively identify an aerobic Actinomycete.

•   Additional testing methods are needed provide definitive identification.

Common Causes for Rejection

•   Cultures infested with mites

•   Cultures broken in transit

Additional Information

•   Most isolates can be identified as having or not having mycolic acids in the cell walls, or as being similar to a genus within 1 week.

Last updated January 9, 2019