Estradiol (E2), Free:
Coupon Codes not valid for this testing.
Fasting Required: No
Lab: Quest Diagnostics Specimen: Blood
Results: Test run Mon, Wed; Average processing time 14-17 days
Note: Result turnaround times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.
Special Instructions: Dietary supplements containing biotin may interfere in assays and may skew results to be either falsely high or falsely low. For patients receiving the recommended daily doses of biotin, draw samples at least 8 hours following the last biotin supplementation. For patients on mega-doses of biotin supplements, draw samples at least 72 hours following the last biotin supplementation.
Includes: Estradiol, Free and Estradiol, Ultrasensitive, LC/MS
Description: Estradiol, also known as E2, is the most active of the estrogens. For women, it is important to look at the relationship between estradiol and progesterone in evaluating menopausal symptoms such as hot flashes, mood disorders, and aging skin. In men, high levels of estradiol are associated with abdominal fat, enlargement of the prostate and cardiovascular risk. In both men and women, low levels of estradiol are associated with osteoporosis. This test measures the free flowing, unbound, or circulating estradiol.
Fasting Required: No
Lab: Quest Diagnostics Specimen: Blood
Results: Test run Mon, Wed; Average processing time 14-17 days
Note: Result turnaround times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.
Special Instructions: Dietary supplements containing biotin may interfere in assays and may skew results to be either falsely high or falsely low. For patients receiving the recommended daily doses of biotin, draw samples at least 8 hours following the last biotin supplementation. For patients on mega-doses of biotin supplements, draw samples at least 72 hours following the last biotin supplementation.
Includes: Estradiol, Free and Estradiol, Ultrasensitive, LC/MS
Description: Estradiol, also known as E2, is the most active of the estrogens. For women, it is important to look at the relationship between estradiol and progesterone in evaluating menopausal symptoms such as hot flashes, mood disorders, and aging skin. In men, high levels of estradiol are associated with abdominal fat, enlargement of the prostate and cardiovascular risk. In both men and women, low levels of estradiol are associated with osteoporosis. This test measures the free flowing, unbound, or circulating estradiol.