Entamoeba histolytica Antigen, EIA
Use
Entamoeba histolytica are intestinal parasites that infect a half billion people worldwide annually. Of those infected, most are infected with the non-pathogenic E. dispar, which has not been associated with disease. It is estimated that approximately 10% of the half billion people infected each year are infected with the pathogenic E. histolytica. These individuals become symptomatic and develop colitis and liver abscesses.
Special Instructions
Separate specimens must be submitted when multiple tests are ordered.
Limitations
Extraintestinal amebiasis is frequently found without trophozoites or cysts in stool: patients may have a negative stool antigen result. The Entamoeba histolytica Antigen EIA test detects only the antigen of the pathogenic E. histolytica; the non-pathogenic E. dispar is not detected.
New York Approved
Methodology
Immunoassay (EIA)
Biomarkers
LOINC Codes
- 29905-7
- 29905-7
Result Turnaround Time
4-8 days
Related Documents
For more information, please review the documents below
Specimen
Stool
Volume
2 g
Minimum Volume
1 gram
Container
Sterile stool container
Collection Instructions
Collect 2 grams of fresh unpreserved stool in sterile container. Send specimen frozen.
Causes for Rejection
Stool in preservative; Carey-Blair Transport Media, rectal swabs; diaper specimens; liver abscess
Stability Requirements
| Temperature | Period |
|---|---|
| Refrigerated | 48 hours |
| Frozen | 7 days |