Specimen Requirements
Title
Estradiol (E2)
Specimen Requirement
Collect SST, after 30 minutes of clotting, promptly centrifuge and send 1.0 mL serum.
Alternate sample: Red top or green lithium heparin
Patient preparation:
Patients should be cautioned to stop biotin consumption at least 72 hours prior to the collection of a sample. This test may exhibit interference when sample is collected from a person who is consuming a supplement with a high dose of biotin (also termed as vitamin B7 or B8, vitamin H, or coenzyme R).
Methodology
Electrochemiluminescence immunoassay (ECLIA)
Stability
Room temp: 14 days, Refrigerated: 14 days, Frozen: 14 days
Reference Range
Turnaround
Clinical Use
This estradiol assay is designed for the investigation of fertility of women of reproductive age and for the support of in vitro fertilization.
Test Code
ESTDS