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ESTRADIOL, serum (087-3739)
Test Mnemonic:

  E2
Methodology:

  Chemiluminescence
Performed:

 Special Chemistry;  Monday – Friday: 7am – 3:30 pm
Turnaround Time:

  M-F: within 24 hours
Specimen Requirements: Patient Preparation:  Draw before a meal to avoid excess lipids in blood.

Collect:  7mL of blood in SST/gel barrier tube or red-topped tube. Acceptable: plasma heparin (Min.: 3mL of blood).  

 Specimen Preparation: Allow specimen to clot completely at room temperature. Centrifuge to separate serum from cells within 2 hours of collection. Transfer serum from collection tube to labeled plastic transport tube.   

Storage/Transport:  Delivered to Sample Management within 2 hours of collection.

Stability: Room temperature for ≤ 8 hours, refrigerated for ≤ 48 hours or frozen.

Causes for Rejection: Incomplete and/or incorrect sample identification, improper storage/transport , and gross hemolysis or lipemia                                                                                              
Clinical Information:

If applicable, state clinical information that is required to be provided with specimen.
Reference Range:

By report (reports may vary based on instrumentation, patient age and sex)
Note:

 The test can not be ordered more than once per week. Additional requests must be approved by the laboratory director.  Not available on Week-ends.
CPT 4 Code:

 82670
  Reviewed by Tho Nguyen, MT(ASCP) 7/5/13

When ordering tests for which Medicare or Medicaid reimbursement will be sought, physicians should only order tests that are medically necessary for the diagnosis or treatment of the patient.  Components of the organ or disease panels may be ordered individually.  The diagnostic information must substantiate all tests ordered and must be in the form of an ICD-9 code or its verbal equivalent.
   
 

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