| Test Name: |
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Estradiol
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| Test Code(s): |
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REST / EST
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| CPT Code(s): |
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82670
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| Methodology: |
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Chemiluminescent Immunoassay
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| Days Performed: |
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Daily, dayshift.
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| Turnaround Time: |
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Stat: 1 hour.
Routine: 4 hours.
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Specimen Requirements
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| Specimen: |
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Blood
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| Collection Container: |
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Preferred: Red cap with yellow ring (SST)
Also Acceptable:
Red top
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| Collection Volume: |
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Preferred: 1 mL
Pediatrics: 0.5 mL
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| Sample Analyzed: |
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Serum
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| Volume Required: |
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Preferred: 0.5 mL
Pediatrics: 0.2 mL
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| Specimen Processing: |
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Centrifuge. If a complete barrier has not formed, transfer cell-free serum to plastic vial. Refrigerate.
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| Specimen Transport: |
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Transport specimen to UWHC Core Laboratory (B4/220). Transport with coolant pack if coming from outreach location.
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| Stability: |
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Ambient: 20 hours
Refrigerated: 2 days
Frozen: 6 months
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Interpretation
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Reference Interval:
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| Male: |
pg/mL
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| 6 months - 17 years |
Up to 40
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18 years and up
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Up to 40
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| Female: |
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| 6 months - 5 years |
Up to 50
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| 6 years - 10 years |
Up to 55
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| 11 years - 14 years |
Up to 85
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| 15 years - 17 years |
Up to 110
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| 18 years and up: |
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Follicular phase
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20-144
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Midcycle
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64-357
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Luteal phase
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56-214
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Postmenopause
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Up to 32
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| Test Limitations: |
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Results may be affected if patient has developed heterophilic antibodies due to exposure to animal based protein products.
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