Reference Interval:
| Test Number
| Components
| Reference Interval
| | 0051004 | Ehrlichia chaffeensis Antibody, IgG by IFA
| < 1:64 Negative-No significant level of Ehrlichia chaffeensis IgG antibody detected.
1:64-1:128 Equivocal-Questionable presence of Ehrlichia chaffeensis IgG antibody detected. Repeat testing in 10-14 days may be helpful.
≥1:256 Positive-Presence of IgG antibody to Ehrlichia chaffeensis detected, suggestive of current or past infection.
| | 0051003 | Ehrlichia chaffeensis Antibody, IgM by IFA
| < 1:16 Negative-No significant level of Ehrlichia chaffeensis IgM antibody detected.
≥ 1:16 Positive-Presence of IgM antibody to Ehrlichia chaffeensis detected, suggestive of current or recent infection.
|
|
| Interpretive Data: |
Refer to individual components.
Refer to Statement B under Testing Information at http://www.aruplab.com.
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| Note: |
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 Ehrlichia chaffeensis which can be detected by an immunofluorescent antibody (IFA) test.
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| CPT Code(s): |
86666 Ehrlichia chaffeensis IgG; 86666 Ehrlichia chaffeensis IgM
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Cross References: |
Human Monocytic Ehrlichiosis (HME) (Ehrlichia chaffeensis Antibodies, IgG & IgM by IFA)
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