Coxiella burnetii (Q-Fever) Antibody IgG, Phase I & II by IFA
0050462
Ordering Recommendation
 
Mnemonic
Q-F 1,2
Methodology
Semi-Quantitative Indirect Fluorescent Antibody
Performed
Tue, Fri
Reported
1-5 days  
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
Specimen Required
Patient Preparation
  
Collect
Serum separator tube.  
Specimen Preparation
Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.1 mL) Parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute specimens. Mark specimens plainly as "acute" and "convalescent."  
Storage/Transport Temperature
Refrigerated.  
Unacceptable Conditions
Contaminated, hemolyzed, or severely lipemic specimens.  
Remarks
  
Stability
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)  
Reference Interval
Phase I: < 1:16 No antibody detected.
Phase II: < 1:16 No antibody detected.  
Interpretive Data
Single phase II IgG titers of 1:256 and greater are considered evidence of C. burnetii infection at some time prior to the date of the serum specimen. Phase I antibody titers of 1:16 and greater are consistent with chronic infection or convalescent phase of Q-fever.  
Note
 
CPT Code(s)
86638 x2
Components
Component Test Code*Component Chart Name
0050463Q-Fever, Phase I IgG Antibody
0050464Q-Fever, Phase II IgG Antibody
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Aliases
  • Coxiella burnetii
  • Coxiella Titer
  • Q Fever Phases I and II antibody