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Respiratory Syncytial Virus Antibody, Serum
MessageFor Specimen Integrity during Extreme Weather see the “Lockbox Usage in Extreme Weather” document at the top of this page.
Test Code
RSVABS
CPT Codes
86756
Preferred Specimen
1 mL serum
Minimum Volume
0.5 mL
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 7 days
Refrigerated: 14 days
Frozen: 30 days
Refrigerated: 14 days
Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Grossly icteric, lipemic, or hemolyzed samples
Methodology
Complement Fixation (CF)
Setup Schedule
Set up: Tues-Sat; Report available: 2-5 days
Reference Range
<1:8 titer
Interpretive Criteria
Single titers ≥1:64 usually indicate recent titer RSV infection. A four-fold or greater increase in titer between acute and convalescent specimens is required for diagnosis of RSV infection in adults and children >6 months of age. In contrast, titer only about 50% of infected children less than 6 titer months of age exhibit a four-fold or greater increase in titer. Viral isolation and RSV antigen detection methods are recommended for patients <6 months old.
Interpretive Criteria
<1:8 | Antibody Not Detected |
≥1:8 | Antibody Detected |
Performing Laboratory
Quest Diagnostics Nichols Institute-San Juan Capistrano, CA |
33608 Ortega Highway |
San Juan Capistrano, CA 92675-2042 |
Last Updated: December 6, 2021