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Test Name:
Eastern Equine Encephalitis IgG Antibody, by IFA, Serum
- SBMF No:
44059 - Performance Lab Name:
ARUP Laboratories - Test Mnemonic:
EASTERN - ABN:
Not required - CPT Code:
86652 - LOINC Code:
10896-9 - Ref Lab Test No:
0050509 - Also Known As:
Encephalitis Antibody, Eastern Equine, IgG
EEE IgG Ab - Also See:
44056 California Encephalitis IgG Antibody, Serum
44060 St. Louis Encephalitis IgG Antibody, Serum
28237 West Nile Virus IgG Antibody, Serum
44061 Western Equine Encephalitis IgG Antibody, Serum - Spec Type:
Serum - Spec Container:
Gold top (SST) or red top (serum) tube - Pref Vol:
1.0 mL - Min Vol:
0.5 mL
Pediatric Collection: 0.15 mL - Fasting:
No - Spec Collect:
Routine venipuncture
Parallel testing is preferred
Label samples as: "acute" or "convalescent"
Convalescent samples must be received within 30 days from receipt of acute samples - Spec Process:
Clot 30 minutes
Promptly centrifuge 15 minutes
Immediately transfer serum to separate plastic tube - Spec Store Transport:
Refrigerated - Spec Stability:
After separation from cells:
48 hours room temperature (20-30°C)
2 weeks refrigerated (2-8°C)
1 year frozen (-20°C) – Do not use frost-free units that undergo repeated freeze/thaw cycles - Spec Reject:
Severely lipemic, contaminated, or hemolyzed sample - Methodology:
Indirect Fluorescent Antibody (IFA) - Clinical Significance:
Refer to:
- Reference Range:
- Eastern Equine Encephalitis Antibody, IgG by IFA, Serum
- Less than 1:16
- Interpretive Data:
- A positive result for IgG may suggest current or past infection. Eastern equine encephalitis and western equine encephalitis viruses are both related and will show cross-reactivity. Initial infection by one of these viruses will show a specific rise in titer which is higher than titers against any other viruses of the group. A subsequent infection by another virus within this group, however, will boost the titer against the initial infecting virus (anamnestic response) and make a specific diagnosis difficult.
- Day Run:
Tue, Fri - Time Reported:
2-6 days - Test Type:
INFECTIOUS ANTIBODY
