Febrile Antibodies Panel
2001789
Ordering Recommendation
 
Mnemonic
FEB ABS
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
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, IgG Less 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, IgM Less 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.
2001586Salmonella typhi Antibodies  
 
Test Number Components Reference Interval
 Salmonella typhi H type A Total Antibody Refer to report
 Salmonella typhi H type B Total Antibody Refer to report
 Salmonella typhi H type D Total Antibody Refer to report
 Salmonella typhi O type D Total Antibody Refer to report
 Salmonella typhi O type Vi Total Antibody Refer to report
Interpretive Data
 
Note
 
CPT Code(s)
86622; 86757 x4; 86768 x5
Components
Component Test Code*Component Chart Name
0050135Brucella Ab (Total) by Agglutination
0050369Rocky Mt Spotted Fever IgG
0050372Rocky Mt Spotted Fever IgM
0050381Typhus Fever Antibody, IgG
0050383Typhus Fever Antibody, IgM
2001587Salmonella Typhi H Type A
2001588Salmonella Typhi H Type B
2001589Salmonella Typhi H Type D
2001590Salmonella Typhi O Type D
2001591Salmonella Typhi O Type VI
* 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 Agglutinatio
  • 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