Casandra
Casandra Test Code QD53629Version 1 (DRAFT)
Performing Lab
Rickettsia (RMSF) Antibodies (IgG, IgM) with Reflex to Titers
Also known as: Rocky Mountain Spotted Fever, Spotted Fever Typhus
Clinical Use
Order TestUse
Antigen-specific IgG and IgM titers allow rapid diagnosis of infection by spotted fever group rickettsial agents, including R. rickettsii (Rocky Mountain Spotted Fever) and R. akari (rickettsial pox) in the United States.
Special Instructions
Not provided.
Limitations
Even after infection has been treated, positive results may persist. False-positive reactions may occur during pregnancy.
Test Details
Methodology
Immunoassay (Indirect Fluorescent Assay (IFA))
Biomarkers
2 components
RMSF IgG • Indirect Fluorescent Assay (IFA)RMSF IgM • Indirect Fluorescent Assay (IFA)
LOINC Codes
Order Codes
- 32999-5 - Rick SF IgG Ser Ql
- 33000-1 - Rick SF IgM Ser Ql
Result Turnaround Time
1-4 days
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Serum
Volume
1 mL serum
Minimum Volume
0.2 mL
Container
Plastic screw‑cap vial
Causes for Rejection
Gross hemolysis • Grossly lipemic
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 7 days |
| Refrigerated | 14 days |
| Frozen | 30 days |
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