Hemolysis Gross lipemia Contaminated samples Plasma or body fluid samples Avoid repeated freeze/thaw cycles
Reference Range(s)
>0.1 IU/ML is considered protective
Specimen Requirements
Preferred Specimen
Serum Seperator Tube
Minimum Volume
0.2 mL Serum
Sample Stability
After separation from cells: 2 days room temperature 2 weeks refrigerated 1 year frozen
Transport Temperature
Refrigerated
Collection Instructions
Allow SST to clot in an upright position for at least 30 minutes, then centrifuge sample within 2 hours of collection. Clearly label sample as pre or post immunization. Post sample should be collected 30 days following immunization. Refrigerate.