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HelpTest Code LAB523 Estradiol (E2), Serum or Plasma
Additional Codes
45549
Reporting Title
Estradiol, Serum
Methodology
Roche Diagnostics, Electrochemiluminescence Immunoassay
Useful in the diagnosis and treatment of various hormonal disorders.
Performing Laboratory
OhioHealth Laboratory Services - RMH and MH Core Laboratories
Specimen Requirements
Draw blood in a gold-top serum gel tube(s). Spin down and send 1 mL of serum refrigerated.
Note:
1. A speckled-top serum gel tube (s) or a plain, red-top tube(s) is also acceptable.
2. Heterophile antibodies may interfere with this assay.
Alternate:
Plasma
Draw blood in a mint green-top (heparin) gel tube(s). Spin down and send 0.5 mL of heparinized plasma refrigerated.
Note: 1. Heterophile antibodies may interfere with this assay.
2. Indicate plasma on request form.
3. Label specimen appropriately (plasma).
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum or plasma | Refrigerated | 2 days |
| Ambient | 24 hours | |
| Frozen | 6 months |
Specimen Transport Temperature
Refrigerate/Frozen OK/Ambient OK
Reference Values
RMH Roche
Males: 0-56 pg/mL
Females
Pre Menopausal: 15-350 pg/mL
Post Menopausal: < 10 pg/mL
Estradiol levels change during the menstrual cycle as follows:
Post menses as low as 15 pg/mL Levels rise during the follicular phase to 300+ pg/mL
Levels fall in the luteal phase
Menses occurs in the 50-100 pg/mL range
Day(s) Test Set Up
Monday through Sunday; Continuously
Test Classification and CPT Coding
82670