Ordering Recommendation
Confirm presence of disease; not recommended for initial testing.
Mnemonic
FBRL AB
Methodology
Semi-Quantitative Agglutination/Semi-Quantitative Indirect Fluorescent Antibody/Qualitative Immunoblot
Performed
Mon-Fri
Reported
2-5 days
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect
Serum Separator Tube (SST).
Specimen Preparation
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.
Storage/Transport Temperature
Refrigerated.
Unacceptable Conditions
Contaminated or heat-inactivated specimens.
Remarks
Mark specimens plainly as acute or convalescent.
Stability
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year
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 |
Compliance Category
FDA
Note
Hotline History
N/A
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 |
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
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
Febrile Antibodies Identification Panel