Test Overview
Test Methodology


Test Usage

Screening tests to identify agglutinins in sera of patients suspected of having typhoid or paratyphoid fevers when the organism is difficult to culture.

Reference Range *

Salmonella Antibodies: Negative; Brucella Antibodies (IgG, IgM): <0.80; Rickettsia (RMSF) Antibodies (IgG, IgM): Negative; Rickettsia (Typhus Fever) Antibodies (IgG, IgM): Negative.

Test Details
Days Set Up
Monday - Friday
Analytic Time

1 - 4 days

Soft Order Code
  • Proteus OX-K
  • Typhoid O and H
  • Proteus OX-2
  • Proteus OX-19
  • Brucella Antibody
  • Weil-Felix Agglutinins
  • Widal Agglutinins
  • Salmonella O and H Antibody
  • Rickettsia typhi
  • Rocky Mountain Spotted Fever
  • Rickettsia rickettsii
  • Typhus Fever Group Antibody
  • Murine Typhus
Reference Laboratory
Mayo FFAPL (57379) (Focus 91121)
Special Testing
Specimen Requirements
Collection Instructions

Collect specimen in a red top or SST tube. Centrifuge, aliquot serum into a plastic vial and refrigerate.

Yellow Top Tube
Normal Volume
3 mL serum
Minimum Volume
0.8 mL serum
Additional Information

Test includes Brucella Antibodies IgG & IgM, Rickettsia (RMSF) Antibodies IgG & IgM, Rickettsia typhi (Typhus Fever) Antibodies IgG & IgM, and Salmonella Antibodies. If RMSF IgG is detected, RMSF IgG titer will be performed (CPT 86757); if RMSF IgM is detected, RMSF IgM titer will be performed (CPT 86757); if R. typhi IgG is detected, R. typhi IgG titer will be performed (CPT 86757); if R. typhi IgM is detected, R. typhi IgM titer will be performed (CPT 86757); if Brucella IgM is >or= 1.10, Brucella Agglutination will be performed CPT 86622). By ordering this test the clinician acknowledges that additional reflex testing will be performed and billed at a separate additional charge if indicated. Test sent to Mayo Medical Laboratories; performed by Focus Diagnostics.

CPT Code
86622 x2, 86757 x4, 86768 x5
Fee Code
NY State Approved