Entamoeba histolytica Antigen, EIA
Also known as: AMOEBA
Use
The Entamoeba histolytica Antigen test is used to diagnose infections caused by the parasite Entamoeba histolytica, which can lead to symptoms such as diarrhea. It is particularly recommended for testing in cases of persistent diarrhea lasting over 14 days or when clinical risk factors suggest E. histolytica as the suspected agent.
Special Instructions
Specimens must be transferred to an unpreserved stool transport vial using ARUP supply #40910, available online or through ARUP Client Services. Unacceptable conditions include specimens in media or preservatives.
Limitations
This test is designed for qualitative detection of the E. histolytica antigen. Results must be interpreted in context with the patient's clinical condition and other diagnostic tests. Unacceptable specimen conditions and incorrect storage may lead to false results. Ambient stability is not acceptable, and excessive handling may reduce antigen viability.
New York Approved
Methodology
Immunoassay (EIA)
Biomarkers
LOINC Codes
- 29905-7
Result Turnaround Time
1-2 days
Related Documents
For more information, please review the documents below
Specimen
Stool
Volume
5g
Minimum Volume
1g
Container
Unpreserved stool transport vial (ARUP supply #40910)
Collection Instructions
Transfer the stool specimen to the transport vial using ARUP supply #40910.
Storage Instructions
Store frozen until transport.
Causes for Rejection
Specimens in media or preservatives.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Unacceptable |
| Refrigerated | 48 hours |
| Frozen | 2 weeks |