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HelpTest Code OAP Ova & Parasite Exam, Giardia/Cryptosporidium (Rapid Immunoassay)
Infectious
Specimen Required
Specimen Type: Raw or preserved Stool
Container / Tube: Clean, airtight container (raw) or Stool preserved in Cary-Blair transport media
CPT Codes
87328: Infectious agent antigen detection by immunoassay, Cryptosporidium
87329: Infectious agent antigen detection by immunoassay, Giardia
Testing Schedule
Days Performed: Monday through Sunday
Times Performed: Day Shift only (0600 - 1430)
Turn-around Time: 30 - 60 minutes depending upon current workload
* If specimen is submitted after 1400, it will be run the following morning
Special Instructions
DO NOT take fecal specimens from the toilet bowl.
DO NOT mix urine with the fecal sample.
Prepare the preserved specimen within one hour: it is important to sample areas of the specimen which appear bloody, slimy, or watery. If the stool is hard, sample small amounts from each end and the middle of the specimen.
Preserved Specimen Preparation:
1. Open the bottle containing the red solution (Cary-Blair media) and add enough stool to bring the
liquid level up to the "Fill To Here" line using the spoon attached to the cap.
2. Thoroughly mix the specimen and solution by shaking the bottle at least 20 times
3. Label everything appropriately.
Fresh, raw specimens must be tested as soon as possible after collection. Preserved specimens in Cary-Blair can be stored at 2 - 8ºC and tested within two weeks.