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HelpTest Code LAB523 Estradiol (E2)
Department
CHEMISTRY
Primary Collection Container
Green PST (Lithium Heparin)
Transport
Plasma refrigerated
Preferred Transport Temperature
Refrigerated
Processing
Centrifuge and refrigerate.
Separate from cells if testing is delayed more than 8 hours.
Stability
Ambient: 24 hours
Refrigerated: 2 days Frozen: 6 months
Minimum Testing Volume
0.5 mL
Reference Range
Follicular Phase: 15.2-137.8 pg/mL
Mid-Cycle: 58.9-346.7 pg/mL
Luteal Phase: 50.9-206.6 pg/mL
Males: <35.3 pg/mL
Methodology
Roche e801 Electrochemiluminescence Immunoassay; Competition principle
Performed
Sunday – Saturday
Reported
As completed
CPT Codes
82670
Unacceptable Conditions
Gross hemolysis.