Rickettsia (RMSF) Antibodies (IgG, IgM) with Reflex to Titers
Test Summary
Antigen specific IgG and IgM titers allow rapid diagnosis of infection by any of the spotted fever group of rickettsial agents. This group of agents include R. rickettsii (Rocky Mountain Spotted Fever) and R. akari (rickettsial pox), both seen in the continental United States.
Aliases
- N/A
Specimen Collection
Special Instructions
N/A
Preferred Specimen
1 mL serum
Minimum Volume
0.2 mL
Instructions
N/A
Patient Preparation
N/A
Storage
Plastic screw-cap vial
Transport Temperature
Room temperature
Specimen Stability
- Room temperature: 7 days
- Refrigerated: 14 days
- Frozen: 30 days
Limitations
Even after infection has been treated, positive results may persist. False-positive reactions may occur during pregnancy.
Other Acceptable Specimens
N/A
Unacceptable Specimens
Gross hemolysis • Grossly lipemic
Order Code
RMSFAB
EPIC (Premier) Code
LAB3611
Includes
If RMSF IgG is Detected, then RMSF IgG Titer will be performed at an additional charge (CPT code(s): 86757).
If RMSF IgM is Detected, then RMSF IgM Titer will be performed at an additional charge (CPT code(s): 86757).
If RMSF IgM is Detected, then RMSF IgM Titer will be performed at an additional charge (CPT code(s): 86757).
CPT Code
- 86757 (x2)
Billing Code
- 700000
CPT Statement
Methodology
Immunofluorescence Assay (IFA)
FDA Status
FDA Approved
Physician Attestation of Informed Consent
N/A
Testing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly VA, 20153
14225 Newbrook Drive
Chantilly VA, 20153
Reference Range
| Screen | Titer | |||
| RMSF (IgG) | Not detected | <1:64 | ||
| RMSF (IgM) | Not detected | <1:64 | ||
Setup Schedule / Expected Turnaround Time
Tuesday - Saturday; Report available: 1 - 4 days
Specimen Collection
Special Instructions
N/A
Preferred Specimen
1 mL serum
Minimum Volume
0.2 mL
Instructions
N/A
Patient Preparation
N/A
Storage
Plastic screw-cap vial
Transport Temperature
Room temperature
Specimen Stability
- Room temperature: 7 days
- Refrigerated: 14 days
- Frozen: 30 days
Limitations
Even after infection has been treated, positive results may persist. False-positive reactions may occur during pregnancy.
Other Acceptable Specimens
N/A
Unacceptable Specimens
Gross hemolysis • Grossly lipemic
Result Information
Methodology
Immunofluorescence Assay (IFA)
Testing Laboratory
N/A
Reference Range
| Screen | Titer | |||
| RMSF (IgG) | Not detected | <1:64 | ||
| RMSF (IgM) | Not detected | <1:64 | ||
Setup Schedule / Expected Turnaround Time
Tuesday - Saturday; Report available: 1 - 4 days