Ehrlichia chaffeensis Antibodies, IgG & IgM

Last Modified: 11/17/2021 1:18:49 PM

Medical Necessity Documentation:  
Client Notes:  
Patient Preparation:  
Specimen Requirements: 1.0 mL Serum in a SST Gold Top Tube
Collection Instructions:  
Minimum Volume: 0.2 mL Serum
Transport & Storage: Temperature/Stability: 7 days Ambient
14 days Refrigerated
30 days Frozen
Reference Range:
E. chaffeensis IgG   <1:64   
E. chaffeensis IgM   <1:20   
Critical Ranges:  
Test Comments:  
Methodology: Immunofluorescence
Clinical Significance: Ehrlichia chaffeenis has been identified as the causative agent of Human Monocytic Ehrlichiosis (HME). Infected individuals produce specific antibodies to E. chaffeensis that can be detected by an immunofluorescent antibody (IFA) test. Single IgG IFA titers 1:64 or greater indicate exposure to E. chaffeensis. A four-fold rise in IgG titers between acute and convalescent samples and/or the presence of IgM antibody against E. chaffeensis suggest recent or current infection
Custom Panel: No


Turn Around Time: 2 to 3 days
Days Performed: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday
Sites Performed: Quest - Chantilly
PHL Test Code: MSOT
EPIC Test Code: MISC
Send Out Test Code: 34271
Alternate Test Names: Ehrlichia chaffeensis Antibodies ; Ehrlichia chaffeensis Antibodies (IgG,IgM)
Included Tests: E. chaffeensis IgG; E. chaffeensis IgM
CPT Coding: 86666 x 2

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