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Febrile Antibodies Identification Panel
2010805
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.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
 
Collect
Serum separator tube. 
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. Mark specimens plainly as acute or convalescent. 
Storage/Transport Temperature
Refrigerated. 
Unacceptable Conditions
Contaminated or heat-inactivated specimens. 
Remarks
 
Stability
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen 1 year 
Reference Interval
Test Number
Components
Reference Interval
0050135Brucella Antibody (Total) by Agglutination < 1:20 Negative
0050369Rickettsia rickettsii (Rocky Mountain Spotted Fever) Antibody, IgGLess than 1:64: Negative - No significant level of Rickettsia rickettsii Antibody, IgG detected.
1:64 - 1:128: Low Positive - Presence of Rickettsia rickettsii Antibody, IgG detected, suggestive of current or past infection.
1:256 or greater: Positive - Presence of Rickettsia rickettsii Antibody, IgG suggestive of recent or current infection.
0050372Rickettsia rickettsii (Rocky Mountain Spotted Fever) Antibody, IgMLess than 1:64: Negative - No significant level of Rickettsia rickettsii Antibody, IgM detected.
1:64 or greater: Positive - Presence of Rickettsia rickettsii Antibody, IgM 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.
0050381Rickettsia typhi (Typhus Fever) Antibody, IgG by IFA< 1:64  Negative - No significant level of Rickettsia typhi IgG antibody detected.
1:64-1:128  Equivocal - Questionable presence of Rickettsia typhi IgG antibody detected.  Repeat testing in 10-14 days may be helpful.
≥ 1:256  Positive - Presence of IgG antibody to Rickettsia typhi detected, suggestive of current or past infection.
0050383Rickettsia typhi (Typhus Fever) Antibody, IgM by IFA< 1:64  Negative - No significant level of Rickettsia typhi IgM antibody detected.
≥1:64  Positive - Presence of IgM antibody to Rickettsia typhi detected, suggestive of recent infection.
2010798Salmonella typhi and paratyphi AntibodiesNegative

Interpretive Data
Refer to report.

Note
CPT Code(s)
Components
Component Test Code*Component Chart NameLOINC
0050135Brucella Ab (Total) by Agglutination19053-8
0050369Rocky Mt Spotted Fever IgG5307-4
0050372Rocky Mt Spotted Fever IgM5308-2
0050381Typhus Fever Antibody, IgG5324-9
0050383Typhus Fever Antibody, IgM5325-6
2010807Salmonella paratyphi/typhi Abs Interp17562-0
* 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