Test name: Estradiol
Order Code: E2 III
Preferred Specimen: 2mL serum in a Serum Separator Tube (SST or Tiger-top)
CPT Code: 82670
Collection: Allow SST to clot in an upright position for 30 min, then centrifuge sample within 2 hours of collection. Refrigerate.
Special Instructions and Considerations: Samples should not be taken from patients receiving therapy with high biotin doses (i.e. > 5mg/day) until at least 8 hours following the last biotin administration. Erroneous test results may be obtained from samples taken from patients who have been exposed to vaccines containing rabbit serum or when keeping rabbits as pet animals.
Transport Temperature: Refrgierated
Specimen Stability: 12 hours under room temperature; 2 days refrigerated