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| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Rickettsia (Typhus Fever) Antibodies (IgG, IgM) with Reflex to Titers
Test Code37503
CPT Codes
86757 (x2)
Includes
If R. typhi IgG is Detected, then R. typhi IgG Titer will be performed at an additional charge (CPT code(s): 86757).
If R. typhi IgM is Detected, then R. typhi IgM Titer will be performed at an additional charge (CPT code(s): 86757).
If R. typhi IgM is Detected, then R. typhi IgM Titer will be performed at an additional charge (CPT code(s): 86757).
Preferred Specimen
1 mL serum
Minimum Volume
0.2 mL
Transport Container
Plastic screw-cap vial
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 7 days
Refrigerated: 14 days
Frozen: 30 day
Refrigerated: 14 days
Frozen: 30 day
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Grossly lipemic
Methodology
Immunofluorescent Assay (IFA)
Setup Schedule
Set up: Tues-Sat; Report available: 1-4 days
Limitations
Even after infection has been treated, positive results may persist. False-positive reactions may occur during pregnancy.
Reference Range
| Screen | Titer | |||||
| R. typhi IgG | Not detected | <1:64 | ||||
| R. typhi IgM | Not detected | <1:64 | ||||
Clinical Significance
Antigen specific IgG and IgM titers allow rapid diagnosis of infection by one or more of the typhus fever group of rickettsial agents. This group includes Rickettsia typhi (endemic or murine typhus) R. prowazeki (epidemic typhus), and Brill-Zinsser disease caused by reactivation of latent R. prowazeki.
Performing Laboratory
| Quest Diagnostics Nichols Institute |
| 14225 Newbrook Drive |
| Chantilly, VA 20153 |
