Giardia lamblia, Direct Detection EIA
Also known as: Stool for Giardia lamblia
Use
Rapid detection of Giardia lamblia from clinical samples
Special Instructions
Do not collect specimens for one week following the administration of barium or laxatives. Collection should occur before starting antidiarrheal or antiparasitic therapy. It is recommended to submit one or two specimens per diarrheal illness immediately for EIA testing.
Limitations
The test may show false-negative results in the initial stages of infection or when the organism is present in numbers below the detection threshold of the assay. False positives might occur if instructions are not properly followed, particularly concerning specimen collection and transport requirements. Prolonged storage beyond stability limits can affect test performance.
Methodology
Immunoassay (EIA)
Biomarkers
LOINC Codes
- 6412-1
- 6412-1
Result Turnaround Time
2-3 days
Related Documents
For more information, please review the documents below
Specimen
Stool
Volume
2 g or 2 mL
Minimum Volume
2 g, 2 mL
Container
O&P transport vial with formalin (Para-Pak® pink) or sterile screw-cap container or Para-Pak® white
Collection Instructions
Collect fecal specimens before antidiarrheal or antiparasitic therapy begins. Avoid specimen collection within one week after barium or laxative administration. Submit one or two specimens per diarrheal episode as soon as possible.
Storage Instructions
Maintain specimen in formalin at room temperature or refrigerated; test within 18 months. Stool in sterile container should be frozen or can be refrigerated if tested within 24 hours.
Causes for Rejection
Inappropriate specimen transport device, specimens in PVA, non-stool specimens, improperly labeled specimens, prolonged delay before receipt, specimens in Cary Blair medium
Other tests from different labs that may be relevant