Specimen Requirements
Minimum of 2.0 mL serum
Supplies for Submission
Royal Blue Top (1) no additives
Specimen Collection
- Allow Royal Blue Top tube contents to clot in an upright position for at least 60 minutes.
- Centrifuge sample and separate from cells within 2 hours of collection.
- Label a plastic transport tube with two identifiers. Acceptable identifiers include patient’s name, date of birth, social security number, requisition number, and medical record number.
Label the tube as serum from Royal Blue Top. - Transfer serum to the tube.
Storage Requirements
Room Temperature
Causes for Rejections
Specimens collected in SST or non-(trace metal)-free tubes are not accepted.