2-5 days after setup at PeaceHealth Laboratories’ reference lab
CPT Code:
86658-90
Specimen Collection Details
Collection:
One 7.5 mL serum separator tube (SST).
Handling:
Centrifuge and separate serum into a plastic via within one hour of collection.
Stability:
48 hours ambient, 14 days refrigerated, or 1 year frozen.
Standard Volume:
1 mL serum
Minimum Volume:
0.5 mL serum
Transport:
Refrigerated.
Comments:
Paired testing of acute and convalescent specimens is recommended. Label tubes clearly as ‘acute’ or ‘convalescent.’
Rejection Criteria:
Severely lipemic, hemolyzed, or contaminated specimen.
Reference Range:
< 1:8
Single positive antibody titers of greater than 1:32 may indicate past or current infection. Seroconversion or an increase in titers between acute and convalescent sera of at least fourfold is considered strong evidence of current or recent infection.
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