Febrile Antibodies Panel
2001789
Ordering Recommendation
Submit With Order
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.
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.
Cross References
  • 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