Cryptosporidium, Direct Detection EIA
Use
Rapid detection of Cryptosporidium from clinical samples.
Special Instructions
Fecal specimens should be collected before the initiation of antidiarrheal or antiparasitic therapy. The highest yield occurs when patients present with diarrhea on admission or within 72 hours. For efficient diagnosis, one or two specimens should be submitted per diarrheal illness. Consider requesting EIAs for Giardia and Cryptosporidium and if negative, add testing for Ova and Parasites Examination.
Limitations
False negatives may occur if specimens are collected post-therapy initiation. Diarrhea onset more than 72 hours after hospital admission is usually due to Clostridium difficile toxin. Parasitic infections might not be detected if only a single sample is analyzed; therefore, follow-up testing may be required for confirmation.
Methodology
Immunoassay (EIA)
Biomarkers
LOINC Codes
- 6371-9
- 6371-9
Result Turnaround Time
3-5 days
Related Documents
For more information, please review the documents below
Specimen
Stool
Volume
2 g or 2 mL
Minimum Volume
2 g or 2 mL
Container
O&P transport vial with formalin (Para-Pak® pink); stool C&S transport vial with Cary Blair medium (Para-Pak® orange); sterile screw-cap container or Para-Pak® white
Collection Instructions
Fecal specimens for parasitic examination should be collected before initiation of antidiarrheal therapy or antiparasitic therapy. Submit one or two specimens per diarrheal illness immediately.
Storage Instructions
Maintain stool specimens in O&P transport with formalin at room temperature or refrigerate and test within 18 months of collection. Cary Blair transport should be refrigerated or frozen. Stool in sterile container should be kept between 2-8°C and tested within 24 hours or frozen until tested.
Causes for Rejection
Inappropriate specimen transport device; specimens in PVA; specimens other than stool; specimens received other than described; inadequate labeling
Other tests from different labs that may be relevant