Methodology
Microscopic Exam of Modified Acid-Fast Stain
Specimen Type
Stool
Performing Lab
Quest Diagnostics San Juan Capistrano
Epic ID
Other Reference Test
Lab Test Days
Daily
Standard TAT
1-2 Days
Collection Information
Specimen Required
5-10 g or mL Stool
Container Type
10% Formalin or Total-Fix Transport Vial
Collection Instructions
Transfer stool within 30 minutes of collection into suitable vial. Fill to the line on the transport vial. Stool must not contain residual barium from diagnostic tests.
Processing Information - Lab Use Only
Transport Temperature
Room Temp-Only
Specimen Stability
Room Temp: 30 Days; Refrigerated: Unacceptable; Frozen: Unacceptable
Rejection Criteria
Received frozen; Unpreserved stool; Stool specimens preserved in transport media not listed as acceptable
Test Volume Required
10 g or mL Stool
Minimum Test Volume
5 g or mL Stool
Processing Instructions
Transfer stool within 30 minutes of collection into suitable vial. Fill to the line on the transport vial.
Included Tests
Cyclospora Examination and Isospora Examination, Concentration
CPT Codes
87015, 87207
Revised
7/15/26
Initials
SA