Giardia lamblia, Direct Detection EIA and Cryptosporidium, Direct Detection EIA
Also known as: Cryptosporidium Antigen
Use
Rapid detection of Giardia and Cryptosporidium from clinical samples.
Special Instructions
Fecal specimens for testing should be collected before the initiation of antidiarrheal or antiparasitic therapy. It is recommended to submit one or two specimens per diarrheal illness immediately. If EIAs are negative, add-on testing for Ova and Parasites Examination should be considered.
Limitations
The test may not detect all variants of Giardia and Cryptosporidium. The highest yield for detection is when diarrhea is present on admission or within 72 hours in hospitalized patients. Diarrhea that begins more than 72 hours after admission is usually due to Clostridium difficile toxin rather than parasites.
Methodology
Immunoassay (EIA)
Biomarkers
LOINC Codes
- 48060-8
- 6412-1
- 6371-9
Result Turnaround Time
2-5 days
Related Documents
For more information, please review the documents below
Specimen
Stool
Volume
2 Grams or 2 mL
Minimum Volume
2 Grams or 2 mL
Container
O&P transport vial with formalin (Para-Pak® pink); sterile screw cap container or Para-Pak® white
Collection Instructions
Collect specimens before initiation of therapy. Submit one or two specimens per illness immediately.
Storage Instructions
Maintain in O&P transport at room temperature or refrigerate and test within 18 months. If in sterile container, freeze or refrigerate if testing within 24 hours.
Causes for Rejection
Inappropriate container; specimens in PVA; non-stool specimens; inadequate labeling.