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HelpTest Code LAB797 Hepatitis A Antibody, Total (IgG and IgM), with Reflex to Hepatitis A, IgM
Infectious
Reporting Title
Hepatitis A
Methodology
Roche Diagnostics Electrochemiluminescence Immunoassay
Note: 1. Combined assay—this test detects IgG and IgM antibodies, but does not distinguish them.
2. If total antibody is reactive, hepatitis A IgM will be performed at an additional charge.
Performing Laboratory
OhioHealth Laboratory Services-RMH Special Testing
Specimen Requirements
Draw blood in a gold-top serum gel tube(s). Spin down and send 1 mL of serum refrigerated. A speckled-top serum gel tube (s) or a plain, red-top tube(s) is also acceptable.
Alternate:
Plasma from K2 EDTA and Lithium Heparin is acceptable
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum/Plasma | Refrigerated | 14 days |
| Ambient | 6 days | |
| Frozen | 3 months |
Specimen Transport Temperature
Refrigerate: OK
Ambient: OK
Frozen: OK
Reference Values
Negative
Hepatitis A total antibody is indicative of past exposure to hepatitis A and may persist for years. Hepatitis A IgM antibody indicates recent or current infection.
Day(s) Test Set Up
Monday through Friday: 24/7
Saturday and Sunday: Day shift
Test Classification and CPT Coding
86708 - total antibody
86709 - IgM (if appropriate)