Test Details
Methodology
Indirect fluorescent antibody (IFA)
Result Turnaround Time
1 - 6 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Use
Detect antibodies following infection with murine typhus
Specimen Requirements
Specimen
Serum
Volume
1 mL
Minimum Volume
0.5 mL
Container
Red-top tube or gel-barrier tube
Reference Range
• Negative: <1:64
• Present or past: 1:64
• Recent/active: >1:64
A fourfold increase in antibody titer between acute and convalescent specimens is consistent with recent infection. A single titer ≥1:128 can be consistent with recent infection. Titers of 1:16−1:64 can be indicative of recent or past infection.
Storage Instructions
Refrigerate for five days; freeze serum for long-term storage.
Causes for Rejection
Lipemic, hemolyzed, or bacterially-contaminated samples
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 016188 | Murine Typhus Antibodies, IgG | 5324-9 | 016190 | Murine Typhus Antibodies, IgG | 5324-9 | |
| Order Code | 016188 | |||||
| Order Code Name | Murine Typhus Antibodies, IgG | |||||
| Order Loinc | 5324-9 | |||||
| Result Code | 016190 | |||||
| Result Code Name | Murine Typhus Antibodies, IgG | |||||
| UofM | ||||||
| Result LOINC | 5324-9 |