Entamoeba histolytica Antigen, EIA
Also known as: Entamoeba Ag, E histo, Enta histo Ag, E histolytica, E histo Ag
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
Not provided.
Limitations
Extraintestinal amebiasis is frequently found without trophozoites or cysts in stool: patients may have a negative stool antigen result.
New York Approved
Methodology
Immunoassay (ELISA)
Biomarkers
Entamoeba histolytica Antigen
Protein
LOINC Codes
- 29905-7 - E histolyt Ag Stl Ql IA
- 29905-7 - E histolyt Ag Stl Ql IA
Result Turnaround Time
2-5 days
Related Documents
For more information, please review the documents below
Specimen
Stool
Volume
2 g or 2 mL
Minimum Volume
1 g or 1 mL
Container
sterile leak‑proof container
Collection Instructions
Fresh unpreserved stool collected and sent frozen
Causes for Rejection
Stool in preservative; rectal swabs; diaper specimens; liver abscess
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Unacceptable |
| Refrigerated | 48 hours |
| Frozen | 7 days |
Other tests from different labs that may be relevant