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Geisinger Medical Laboratories Test Catalog
EHRLICHIA CHAFFEENSIS ANTIBODIES (IGG,IGM) |
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ORDERING INFORMATION: |
Geisinger Epic Procedure Code: LAB2208 Geisinger Epic ID: 17792 | |
SPECIMEN COLLECTION |
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Specimen type: |
Serum | |
Preferred collection container: |
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Alternate Collection Container: |
3.5 mL gold-top (serum separator) tube
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Specimen required: |
1 mL aliquot of serum; minimum 0.2 mL. | |
Special notes: |
Plain red-top (nonserum separator) tube preferred. Serum separator tube (SST) also acceptable. | |
| SPECIMEN PROCESSING |
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Specimen processing instructions: |
Allow blood to clot at room temperature. Aseptically transfer serum to sterile, plastic, screw-capped vial(s). Transport refrigerated (cold packs) or frozen on dry ice. Avoid freeze/thaw cycles. | |
Transport temperature: |
Refrigerated or frozen. | |
Specimen stability: |
Room Temperature: 7 days. Refrigerated: 14 days. Frozen: 30 days (-20°C). | |
Rejection criteria: |
Stability limits exceeded. | |
TEST DETAILS |
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Reference interval: |
1:64 -_E. chaffeensis IgG Ab < 1:20 - E. chaffeensis IgM Ab |
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Interpretation guide: |
Human ehrlichiosis is a tick-borne disease caused by rickettsial-like agents. Two forms, human monocytic ehrlichiosis (HME) and human granulocytic ehrlichiosis (HGE), have been described. HME is often referred to as spotless or rashless Rocky Mountain spotted fever, and has been reported in various regions of the United States. The causative agent of HME has been identified as Ehrlichia chaffeensis. Infected individuals produce specific antibodies to E. chaffeensis, which can be detected by an immunofluorescent antibody (IFA) test. Single IgG IFA titers of 1:64 or greater indicate exposure to E. chaffeensis. Specimens demonstrating a fourfold rise in IgG titers between acute and convalescent samples and/or the presence of IgM antibody against E. chaffeensis suggest recent or current infection | |
CPT code(s): |
86666 x 2 | |
| Note: The billing party has sole responsibility for CPT coding. Any questions regarding coding should be directed to the payer being billed. The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only. | ||
Test includes: |
Ehrlichia chaffeensis antibodies (IgG,IgM) | |
Methodology: |
Indirect Immunofluorescent Antibody (IFA) |
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Synonyms: |
EHRLP, Ehrlichia chaffeensis AB Quest test code 34271
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