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Estradiol, Enhanced (eE2)


This Enhanced Estradiol assay uses a competitive assay format.

Test Utility

This test is used to assess and monitor ovarian function and follicular development. This test may be used as an aid in reproduction services.

Specimen Collection and Preparation

Serum or plasma sample in the following tubes:

  • Serum separator tube (gold or tiger top)

  • EDTA (lavender top) OR Heparin (green top)

Specimen Storage and Stability

Store serum or plasma at the following temperatures:

  • Room temperature: Up to 20 hours

  • Refrigerated: 2°C to 8°C for up to 48 hours.

  • Frozen: -20°C or lower for up to 6 months in a non-frost-free freezer. Samples should be thawed only once.

Specimen Rejection

  • Insufficient sample volume

  • Sample not stored at proper temperature

  • Frozen whole blood

  • Severely hemolyzed samples

  • Severely lipemic specimens

  • Specimen labeled incorrectly or not labeled

Reference Pages


Monday – Saturday

Result available within 24 hours of receipt in laboratory

NOTE: Specimens are refrigerated (2-8°) for 7 days before disposal


Vibra Health Laboratory

1307- A, Allen Dr

Troy, MI 48083

(248) 846-0663

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