Entamoeba histolytica Antigen, EIA
Order Code:
EHISTO
Test Summary
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.
Aliases
- N/A
Specimen Collection
Special Instructions
N/A
Preferred Specimen
2 grams or 2 mL fresh unpreserved stool collected in a sterile leak-proof container
Minimum Volume
1 g or 1 mL
Instructions
Stool specimens should be transported in a clean or sterile container as soon as possible and transported at 2° C to 8° C. Store specimens at - 20°C or lower if transport cannot be performed within 48 hours.
Patient Preparation
N/A
Storage
N/A
Transport Temperature
Frozen
Specimen Stability
- Room temperature: Unacceptable
- Refrigerated: 48 hours
- Frozen: 7 days
Limitations
Extraintestinal amebiasis is frequently found without trophozoites or cysts in stool: patients may have a negative stool antigen result.
Other Acceptable Specimens
N/A
Unacceptable Specimens
Stool in preservative • Rectal swabs • Diaper specimens • Liver abscess
Order Code
EHISTO
EPIC (Premier) Code
LAB3253
Includes
N/A
CPT Code
- 87337
Billing Code
- 670901
CPT Statement
Methodology
Enzyme Immunoassay (EIA)
FDA Status
FDA Approved
Physician Attestation of Informed Consent
N/A
Testing Laboratory
Quest Diagnostics Nichols Institute
33608 Ortega Highway
San Juan Capistrano CA, 92675
33608 Ortega Highway
San Juan Capistrano CA, 92675
Department
Reference Testing
Reference Range
Not detected
Setup Schedule / Expected Turnaround Time
Monday, Wednesday, Friday; Report available: 1 - 4 days
Specimen Collection
Special Instructions
N/A
Preferred Specimen
2 grams or 2 mL fresh unpreserved stool collected in a sterile leak-proof container
Minimum Volume
1 g or 1 mL
Instructions
Stool specimens should be transported in a clean or sterile container as soon as possible and transported at 2° C to 8° C. Store specimens at - 20°C or lower if transport cannot be performed within 48 hours.
Patient Preparation
N/A
Storage
N/A
Transport Temperature
Frozen
Specimen Stability
- Room temperature: Unacceptable
- Refrigerated: 48 hours
- Frozen: 7 days
Limitations
Extraintestinal amebiasis is frequently found without trophozoites or cysts in stool: patients may have a negative stool antigen result.
Other Acceptable Specimens
N/A
Unacceptable Specimens
Stool in preservative • Rectal swabs • Diaper specimens • Liver abscess
Result Information
Methodology
Enzyme Immunoassay (EIA)
Testing Laboratory
N/A
Reference Range
Not detected
Setup Schedule / Expected Turnaround Time
Monday, Wednesday, Friday; Report available: 1 - 4 days