Estradiol Free, Equilibrium Dialysis, with Total Estradiol, HPLC/MS-MS

Liquid chromatography tandem mass spectrometry (LC/MS/MS); equilibrium dialysis
Specimen Requirements: 
Important: Serum must be separated from cells within 45 minutes of venipuncture.

Type: Serum, frozen

Container/Tube: Red-top tube or gel-barrier tube
  •  Send specimens in a plastic transport tube. To avoid delays in turnaround time when requesting multiple tests on frozen samples, submit separate frozen specimens for each test requested.

Sample Volume: 3 mL

Minimum Volume: 1 mL (Repeat testing is not possible with this specimen volume.)

Storage: Freeze specimens immediately after collection.

Stability (collection to time of analysis/testing): 
  • Ambient: 6 days
  • Refrigerated: 16 days
  • Frozen: 32 months
Rejection Criteria:
  • Plasma specimen
CPT Code (s): 
82670, 84999

UFHPL Test #: 28070

UFHPL Epic order code: LAB2107462

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