Ulta Lab Tests

Estradiol Free Test

The Estradiol Free Test measures unbound estradiol, the biologically active form of estrogen, to evaluate hormonal balance. Free estradiol plays a critical role in reproductive health, menstrual regulation, bone strength, and cardiovascular function. Abnormal levels may indicate conditions such as infertility, polycystic ovary syndrome, menopausal transition, or estrogen-related endocrine disorders, aiding diagnostic and treatment decisions.

Serum
Phlebotomist
There are no preparation instructions.

The following is a list of what is included in the item above. Click the test(s) below to view what biomarkers are measured along with an explanation of what the biomarker is measuring.

Specimen Type: Serum

Also known as: Estradiol Free LCMSMS

Estradiol

Estradiol, Free

*Important Information on Lab Test Processing Times: Ulta Lab Tests is committed to informing you about the processing times for your lab tests processed through a national lab. Please note that the estimated processing time for each test, indicated in business days, is based on data from the past 30 days across the 13 laboratories for each test. These estimates are intended to serve as a guide and are not guarantees. Factors such as laboratory workload, weather conditions, holidays, and the need for additional testing or maintenance can influence actual processing times. We aim to offer estimates to help you plan accordingly. Please understand that these times may vary, and processing times are not guaranteed. Thank you for choosing Ulta Lab Tests for your laboratory needs.

The Estradiol Free Test test contains 1 test with 2 biomarkers .

Much of Estradiol is bound to proteins. The unbound portion and Estradiol bound to proteins with low affinity reflect the Free concentration. The Free Estradiol may better correlate with medical conditions than the Total Estradiol concentrations.

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