Febrile Antibodies




Test Mnemonic

FEBAB

CPT Codes

  • 86622 - QTY (1)
  • 86757 - QTY (4)
  • 86768 - QTY (5)

Aliases

  • FEBAGG

Includes

  • Brucella Abs
  • Rickettsia rickettsii (Rocky Mt Spotted Fever) Abs, IgG
  • Rickettsia rickettsii (Rocky Mt Spotted Fever) Abs, IgM
  • Rickettsia typhus (Typhus Fever) Abs, IgG by IFA
  • Rickettsia typhus (Typhus Fever) Abs, IgM by IFA
  • Salmonella typhi/paratyphi Abs

Performing Laboratory

ARUP


Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
2.5 mLSerumSST (Gold) RefrigeratedSeparate serum from cells ASAP.

Minimum Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1.5 mL     

Stability

Environmental Condition Description
AmbientAfter separation from cells: 48 hours
RefrigeratedAfter separation from cells: 2 weeks
FrozenAfter separation from cells: 1 year

Days Performed

Mon - Fri

Turnaround Time

3 - 6 days

Methodology

Name Description
Direct Agglutination (DA) 
Immunoblot (IB) 
Indirect Immunofluorescence Assay (IFA)  

Reference Range

Brucella Abs
Sex Age From Age To Type Range Range Unit
       NormalNegative: <1:20titer
R. rickettsii IgG Abs
Sex Age From Age To Type Range Range Unit
       NormalLow Positive: 1:64 - 1:128titer
       NormalNegative: <1:64titer
       NormalPositive: 1:256 and greatertiter
R. rickettsii IgM Abs
Sex Age From Age To Type Range Range Unit
       NormalNegative: <1:64titer
       NormalPositive: 1:64 and greatertiter
Rickettsia typhus (Typhus Fever) Abs, IgG by IFA
Sex Age From Age To Type Range Range Unit
       NormalNegative: <1:64titer
Rickettsia typhus (Typhus Fever) Abs, IgM by IFA
Sex Age From Age To Type Range Range Unit
       NormalNegative: <1:64titer

Special Info

Separate serum from cells ASAP.