Minimum of 1.0 mL serum; alternately 1.0 mL serum from Red Top tube
Supplies for Submission
SST/Gold Top (1); alternately Red Top (1)
Patient should fast overnight prior to sample collection.
Submit a minimum of 1.0 mL serum – send this in a separate tube if other tests are ordered.
After separation from cells, specimens are stable if refrigerated for 3 weeks or frozen for 1 month.
Causes for Rejections
Specimens with the following conditions are not accepted:
- room temperature
- multiple freeze/thaw cycles
- samples other than serum or heparin plasma