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St. John Health System
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Hepatitis B Core IgM Antibody

Order Name HEP BCOR M
Test Number: 5553650
Revision Date 10/01/2022
Test Name Methodology LOINC Code
Hepatitis B Core Antibody IgM
Chemiluminescence Assay 24113-3 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 5 mL (2) Serum Clot Activator SST Refrigerated
Alternate 1 5 mL (2) Plasma Lithium Heparin PST (Light Green Top) Refrigerated
Instructions Absolute minimum is 2 mL serum.
Stability: Ambient 3 days. Refrigerated 7 days. Frozen > 7 days.
GENERAL INFORMATION
Testing Schedule Mon-Fri 
Expected TAT 1-2 Days 
Clinical Use Useful in the diagnosis of Hepatitis B infection and differentiating between acute and chronic Hepatitis B infection when used in conjunction with Hepatitis B core IgG. 
CPT Code(s) 86705
Internal Comments updated lab section ak
9/19/17 update SU - JK
11/8/17 added Freeze if testing cannot be started within 7 days.- JK
6/14/18 change Absolute minimum is 2 mL serum. -- Specimen stability: Room Temp = 8 hours; Refrigerated = 7 days, Freeze if testing cannot be started within 7 days. to
Stability: Ambient 3 days. Refrigerated 7 days. Frozen > 7 days. - JK
10/16/19 updated hyperlink for spec test section. - JK
Service Provided By Labcorp Oklahoma, Inc.
Lab Section Chemistry