Pacific · Estradiol Blood Test – Measure Estradiol Hormone Levels
Estradiol Blood Test – Measure Estradiol Hormone Levels in California
This page explains the estradiol blood test – measure estradiol hormone levels, what it measures, and how to order it. The Estradiol Blood Test measures the level of estradiol, a form of estrogen, in the blood. It helps evaluate hormonal balance and reproductive health.
Lab requirements in California
Here is what you need before ordering and completing the Estradiol Blood Test – Measure Estradiol Hormone Levels in CA. Review each item and confirm the details with the collection lab.
- Physician's order
- Included. A physician's order is required for lab testing and is provided for you by our partner's physicians — no referral from your own doctor is needed.
- Fasting
- Some tests require fasting or avoiding certain foods or drinks beforehand. You will be informed when you order — confirm the details with the collection lab.
- Preparation
- Preparation instructions may vary depending on the reason for testing and the laboratory performing the analysis. Always follow the specific instructions provided by the collection lab.
- Sample & visit
- A blood and/or urine sample is collected; the visit usually takes about 10 minutes.
- Identification
- Bring the lab requisition form from your account. The collection lab may also ask for a government-issued photo ID.
- Turnaround
- 1-3 business days
- Availability
- Our partner lab does not serve ND, RI, NY, NJ, MD or HI. Confirm availability for your location with the collection lab.
Before you go
- Order your test before visiting a lab, then use the requisition form in your account.
- Print the requisition form, or fax it to the lab directly from your account.
- No scheduling is needed — visit the collection lab during its normal business hours.
- A blood and/or urine sample is collected; the visit usually takes about 10 minutes.
- Bring a government-issued photo ID in case the lab requests it.
- Results are posted to your secure account within 1–3 business days.
Requirements are summarized from our partner lab's published policies. Preparation and availability can change — confirm current instructions with the collection lab before your visit.
What this test is
The Estradiol Blood Test is a laboratory test that quantifies the amount of estradiol in the bloodstream. Estradiol is the primary and most potent form of estrogen. In women, it is mainly produced by the ovaries and adrenal glands, while in men, it is produced in smaller amounts by the testes and adrenal glands.
What it measures
- Estradiol — reflects the level of this primary estrogen in the blood
What the test involves
The test requires a standard blood draw, typically from a vein in the arm. The sample is then sent to a laboratory for analysis.
Why it is often ordered
A clinician may order this test to assess ovarian function, investigate menstrual irregularities, or monitor fertility treatments. It can also be used to evaluate hormonal imbalances in both women and men.
Preparation
Preparation instructions may vary depending on the reason for testing and the laboratory performing the analysis. Always follow the specific instructions provided by the collection lab.
How results are reported
Results are reported as a numerical value, often in picograms per milliliter or picomoles per liter. Reference ranges vary by laboratory and are influenced by factors such as age, sex, and menstrual cycle phase.
Before you go
- Whether any specific preparation is required, such as fasting or timing relative to your menstrual cycle.
- The expected turnaround time for results.
- How and when you will receive your test results.
Cities
Estradiol Blood Test – Measure Estradiol Hormone Levels in California communities
Choose your city for local context and to order this test.