Febrile Antibodies Identification Panel
Ordering Recommendation
Confirm presence of disease; not recommended for initial testing.
New York DOH Approval Status
Specimen Required
Serum Separator Tube (SST).
Remove serum from cells ASAP or within 2 hours of collection. Transfer 2.5 mL serum to an ARUP Standard Transport Tube. (Min: 1.5 mL) Parallel testing is preferred and
convalescent specimens must be received within 30 days from receipt of the acute specimens.
Refrigerated.
Contaminated or heat-inactivated specimens.
Mark specimens plainly as acute or convalescent.
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year
Methodology
Semi-Quantitative Agglutination/Semi-Quantitative Indirect Fluorescent Antibody/Qualitative Immunoblot
Performed
Mon-Fri
Reported
2-5 days
Reference Interval
Test Number |
Components |
Reference Interval |
---|---|---|
Brucella Ab (Total) by Agglutination | Less than 1:20 | |
Rocky Mt Spotted Fever IgG | Less than 1:64 | |
Rocky Mt Spotted Fever IgM | Less than 1:64 | |
Typhus Fever Antibody, IgG | Less than 1:64 | |
Typhus Fever Antibody, IgM | Less than 1:64 | |
Salmonella paratyphi/typhi Abs Interp | Negative |
Interpretive Data
Refer to report.
Component | Interpretation |
---|---|
Rickettsia rickettsii (Rocky Mountain Spotted Fever) Antibody, IgG | Less than 1:64 Negative - No significant level of IgG antibody detected. 1:64 - 1:128 Low Positive - Presence of IgG antibody detected, suggestive of current or past infection. 1:256 or greater Positive - Presence of IgG antibody suggestive of recent or current infection. |
Rickettsia rickettsii (Rocky Mountain Spotted Fever) Antibody, IgM | Less than 1:64 Negative - No significant level of IgM antibody detected. 1:64 or greater Positive - Presence of IgM antibody detected, which may indicate a current or recent infection; however, low levels of IgM antibodies may occasionally persist for more than 12 months post-infection. |
Rickettsia typhi (Typhus Fever) Antibody, IgG by IFA | Less than 1:64 Negative - No significant level of IgG antibody detected. 1:64-1:128 Equivocal - Questionable presence of IgG antibody detected. Repeat testing in 10-14 days may be helpful. 1:256 or greater Positive - Presence of IgG antibody detected, suggestive of current or past infection. |
Rickettsia typhi (Typhus Fever) Antibody, IgM by IFA | Less than 1:64 Negative - No significant level of IgM antibody detected. 1:64 or greater Positive - Presence of IgM antibody to detected, which may indicate a current or recent infection; however, low levels of IgM antibodies may occasionally persist for more than 12 months post-infection |
FDA
Note
Hotline History
CPT Codes
86622; 86757 x4; 86768 x5
Components
Component Test Code* | Component Chart Name | LOINC |
---|---|---|
0050135 | Brucella Ab (Total) by Agglutination | 19053-8 |
0050369 | Rocky Mt Spotted Fever IgG | 5307-4 |
0050372 | Rocky Mt Spotted Fever IgM | 5308-2 |
0050381 | Typhus Fever Antibody, IgG | 5324-9 |
0050383 | Typhus Fever Antibody, IgM | 5325-6 |
2010807 | Salmonella paratyphi/typhi Abs Interp | 17562-0 |
Aliases
- Brucella Ab (Total) by Agglutination
- Rocky Mt Spotted Fever IgG
- Rocky Mt Spotted Fever IgM
- Salmonella Typhi H Type A
- Salmonella Typhi H Type B
- Salmonella Typhi H Type D
- Salmonella Typhi O Type D
- Salmonella Typhi O Type VI
- Typhus Fever Antibody, IgG
- Typhus Fever Antibody, IgM