LabInformationLab tests, explained

Estrone Test in California

This page explains the estrone test, what it measures, and how to arrange it. An estrone test measures the level of estrone, a form of estrogen, in your blood. It is often ordered to evaluate hormone balance, especially in women who are postmenopausal or who have symptoms related to estrogen levels. Across California, part of Pacific, the estrone test can be ordered directly and collected at a certified site — no referral required.

Sample type
blood
Category
General Wellness
Turnaround
1-3 business days
Price
$198
Referral
Not required

An estrone test measures the level of estrone, a form of estrogen, in your blood. It is often ordered to evaluate hormone balance, especially in women who are postmenopausal or who have symptoms related to estrogen levels.

What it measures

  • Estrone (E1) — The main estrogen produced after menopause; helps assess overall estrogen status.
  • Estradiol (E2) — Often measured alongside estrone to give a fuller picture of estrogen activity.
  • Estriol (E3) — Another estrogen that may be included, especially during pregnancy.

Who it is for

A healthcare provider may order an estrone test for women with symptoms of hormone imbalance, such as hot flashes or irregular periods, or to monitor hormone therapy. It is also used in some cases of suspected estrogen-producing tumors.

Preparation

No fasting is required. Tell your provider about any hormone medications, as they can affect results; timing may depend on your menstrual cycle or menopause status.

Results and what they mean

Results are reported as a number with a reference range, typically in picograms per milliliter (pg/mL). Your clinician interprets the result along with your symptoms and other tests. This information is not medical advice; discuss your results with a qualified healthcare professional.

Requesting the Estrone Test in California

Order online, choose a certified collection site in California, and review results through a secure portal. No referral is required, and orders are processed confidentially. With coastal metros, inland towns, and rural counties with very different access to testing, it pays to schedule your collection in advance.

Frequently asked questions

Do I need to fast for this test?

No, fasting is not required. You can eat and drink normally before the blood draw.

How long does it take to get results?

Most results are available within 1 to 3 business days.

Can hormone medications affect my estrone level?

Yes, many hormone medications can change estrone levels. Be sure to tell your provider about all medications and supplements you take.

Is this test used to diagnose menopause?

It can help assess hormone status, but menopause is usually diagnosed based on symptoms and other hormone tests. Your clinician will interpret the results in context.

Estrone Test by city in California

All testing in California →   Full Estrone Test guide →