My Recent Searches
- No Recent Search.
My Tests Viewed
- No Test Viewed.
- Ordering Info
To view specimen requirements and codes please select your laboratory:
Not sure which laboratory serves your office? Call us 1-866-MYQUEST (1-866-697-8378)
Client Log-In:
Q Fever (Coxiella burnetii) Antibodies (IgG, IgM), with Reflex to Titers
Test Code
4085N
CPT Code(s)
86638 (x4)
Includes
Q Fever IgG Phase I and II Screens with Reflex to Titers; Q Fever IgM Phase I and II Screens with Reflex to Titers
Preferred Specimen(s)
1 mL serum
Minimum Volume
0.2 mL
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
Room temperature: 4 days
Refrigerated: 7 days
Frozen: 30 days
Methodology
Immunofluorescence Assay
Setup Schedule
Set up: 3 days a week, p.m.; Report available: 3-5 days
Reference Range(s)
| Screen | Titer | |
| Q Fever IgG Phase I | Negative | <1:16 |
| Q Fever IgG Phase II | Negative | <1:16 |
| Q Fever IgM Phase I | Negative | <1:16 |
| Q Fever IgM Phase II | Negative | <1:16 |
Clinical Significance
Caused by infection with rickettsiae agent, Coxiella burnetti, Q Fever is characterized by fever with interstitial pneumonitis. Sixty percent of infected individuals are asymptomatic while other infected individuals may die from complications.
Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.
(The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.)
* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.