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Index:

Q Fever Antibody IgG, Phase I and II with Reflex to Titer

Order Name Q FEVR 1/2
Test Number: 5558886
Revision Date 05/18/2020
Test Name Methodology LOINC Code
Q-Fever Phase I, IgG
Semi-Quantitative Indirect Fluorescent Antibody 48720-7 
Q-Fever Phase II, IgG
Semi-Quantitative Indirect Fluorescent Antibody 48719-9 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1 mL (0.3 mL) Serum Clot Activator SST Refrigerated
Instructions Separate serum from cells ASAP or within 2 hours of collection. Transfer 1mL(Min: 0.1 mL) serum to Standard Transport Tube.
Unacceptable Conditions: Contaminated, hemolyzed, or severely lipemic specimens.
Stability After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)

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."
GENERAL INFORMATION
Testing Schedule Mon, Wed, Fri  
Expected TAT 2-7 Days  
Clinical Use 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. 
Notes If Screens are positive the appropriate titer test will be added on and billed separately.
[5558883] Q-Fever Ab, Phase I IgG Titer
[5558884] Q-Fever Ab, Phase II IgG Titer

Reference Lab: ARUP
ARUP Test Code: 2012625
Click Here to view information on the ARUP website.
CPT Code(s) 86638x2, if reflexed add 86638 per titer.
Lab Section Reference Lab