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Estradiol
Test CodeLAB523
Alias/See Also
ESTRA
CPT Codes
82670
Instructions
"Routine venipuncture
Collect one 5ml Red/gold top serum separator tube"
Collect one 5ml Red/gold top serum separator tube"
Specimen Stability
Allow specimen to clot then centrifuge and refrigerate immediately, keep specimen refrigerated.
Unstable room temperature.
Stable 48 hours refrigerated.
Unstable room temperature.
Stable 48 hours refrigerated.
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Failure to follow proper collection or storage procedures
Methodology
Competitive immunoassay
Setup Schedule
Daily/STAT
Report Available
Within 24 hours
Reference Range
"Interpretation:
Males: 5.37-65.9 pg/mL
Postmenopausal Females: 5.37-38.4 pg/mL
Ovulating Females:Follicular: 26.6-161 pg/mL Pre-ovulatory Peak: 187-382 pg/mL Luteal Phase: 32.7-201 pg/mL "
Males: 5.37-65.9 pg/mL
Postmenopausal Females: 5.37-38.4 pg/mL
Ovulating Females:Follicular: 26.6-161 pg/mL Pre-ovulatory Peak: 187-382 pg/mL Luteal Phase: 32.7-201 pg/mL "
Clinical Significance
Estradiol plays an essential role throughout the human menstrual cycle. Elevated estradiol levels in females may result from ovarian hyperfunction such as in in vitro levels used in reproductive therapy. Decreased estradiol levels in females may result from either the lack of ovarian synthesis (primary ovarian hypofunction and menopause) or a lesion in the hypothalamus-pituitary axis. Estradiol levels are normally low in males
