Sign in →

Test Code LAB3128 Entamoeba histolytica Antibody, Serum

Additional Codes

Mayo Test Code: SAM

Reporting Name

E. histolytica Ab, S

Useful For

As an adjunct in the diagnosis of extraintestinal amebiasis, especially liver abscess


Serology may be particularly useful in supporting the diagnosis of amebic liver abscess in patients without a definite history of intestinal amebiasis and who have not spent substantial periods of time in endemic areas

Method Name

Enzyme-Linked Immunosorbent Assay (ELISA)

Performing Laboratory

Mayo Medical Laboratories in Rochester

Specimen Type


Advisory Information

Direct detection of Entamoeba histolytica in stool specimens is recommended to diagnose intestinal amebiasis. See OAP / Parasitic Examination.

Shipping Instructions


Specimen Required


Preferred: Serum gel

Acceptable: Red top

Specimen Volume: 0.5 mL

Specimen Minimum Volume

0.15 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Frozen (preferred) 30 days
  Refrigerated  7 days

Reject Due To


Mild OK; Gross reject


Mild OK; Gross reject





Reference Values


Day(s) and Time(s) Performed

Tuesday, Thursday; 9 a.m.

CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
SAM E. histolytica Ab, S 22285-1


Result ID Test Result Name Result LOINC Value
9049 E. histolytica Ab, S 22285-1

Test Classification

This test has been cleared or approved by the U.S. Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.


If not ordering electronically, complete, print, and send a Gastroenterology and Hepatology Test Request Form (T728) with the specimen (

Secondary ID