1-5 days after setup at PeaceHealth Laboratories’ reference lab
CPT Code:
86638-90 x2
Specimen Collection Details
Collection:
One 7.5 mL serum separator tube (SST).
Handling:
Allow to clot, centrifuge and immediately separate serum from cells into a plastic vial. Label specimen clearly as ‘acute’ or ‘convalescent.’
Stability:
Specimen stable 48 hours ambient, 14 days refrigerated, or 1 year frozen.
Standard Volume:
1 mL serum.
Minimum Volume:
100 µL serum.
Transport:
Refrigerated.
Comments:
Paired testing of acute and convalescent specimens is recommended.
Rejection Criteria:
Plasma; severely lipemic, hemolyzed or contaminated specimen.
Phase I
≥1:16 No antibody detected
Phase II
≥1:16 No antibody detected
Single phase II IgG titers ≥ 1:256 are considered evidence of C. burnetii infection at some time prior to the date of the serum specimen. Phase I antibody titers ≥ 1:16 are consistent with chronic infection or convalescent phase of Q-Fever.