Respiratory Syncytial Virus Antibody, Serum

Test Code

37119

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

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

<1:8	Antibody Not Detected
≥1:8	Antibody Detected

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.

Performing Laboratory

Quest Diagnostics Nichols Institute-San Juan Capistrano, CA

33608 Ortega Highway

San Juan Capistrano, CA 92675-2042

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.