Estriol
$ 99.99
Estriol E3 Blood Test
Low-Cost Estriol Hormone Test for Pregnancy and Provider-Directed Estrogen Evaluation
The Estriol E3 Blood Test measures the level of estriol in the blood.
Estriol, also called E3, is one of the three main estrogen hormones. Estriol is most commonly associated with pregnancy because levels rise as pregnancy progresses.
This test may be useful when a healthcare provider requests estriol testing for pregnancy-related hormone monitoring, estrogen evaluation, or provider-directed follow-up.
✔ Measures estriol E3 levels
✔ Commonly associated with pregnancy-related hormone testing
✔ Useful for provider-directed estrogen evaluation
✔ Low-cost lab testing option
✔ Doctor's order included
✔ No insurance required
✔ Convenient online ordering
⏱ Typical turnaround: results are usually emailed in 1–3 days.
What Is Estriol?
Estriol, also known as E3, is a form of estrogen.
Estriol is produced in much higher amounts during pregnancy and is commonly used in provider-directed pregnancy hormone evaluation.
Estriol is different from estradiol and estrone. Estradiol is often used for general reproductive hormone testing, while estriol is most strongly linked to pregnancy-related estrogen testing.
What This Test Measures
This blood test measures the amount of estriol in the blood.
- Test name: Estriol E3 Blood Test
- Also known as: Estriol Test, E3 Test, Unconjugated Estriol Test
- Sample type: Blood
- Purpose: Measures estriol hormone levels
- Common use: Pregnancy-related hormone evaluation and provider-directed estrogen testing
Why Order an Estriol Blood Test?
An estriol test may be ordered when a person or healthcare provider wants information about estriol hormone levels.
This test may be considered for:
- Provider-directed pregnancy hormone monitoring
- Follow-up to prenatal screening when requested by a healthcare provider
- Estrogen hormone evaluation
- Monitoring estriol patterns over time when directed by a provider
- Customers who need low-cost direct access to estriol lab testing
Low-Cost Estriol Testing Option
This estriol test is a simple and affordable way to access E3 hormone testing without using insurance.
If your healthcare provider specifically requested estriol, ordering this test directly may help reduce delays and provide a convenient lab option.
For pregnancy-related care, estriol results should always be reviewed with an OB/GYN, midwife, maternal-fetal medicine specialist, or licensed healthcare provider.
Who May Consider This Test?
This test may be appropriate for:
- Individuals whose healthcare provider requested estriol testing
- Pregnant individuals needing provider-directed estriol monitoring
- People following up on hormone-related lab requests
- Customers who want direct access to estriol testing without insurance billing
- Individuals who need results to share with their healthcare provider
Estriol and Pregnancy
Estriol levels typically rise during pregnancy and may be reviewed as part of pregnancy-related hormone evaluation.
Estriol may be included in certain prenatal screening panels, such as triple screen or quad screen testing, but this standalone estriol test is not the same as a complete prenatal screening panel.
If your provider ordered a full prenatal screen, confirm whether you need a panel that includes multiple markers instead of estriol alone.
Estriol vs Estradiol vs Estrone
Estriol, estradiol, and estrone are different forms of estrogen.
- Estriol E3: Most commonly associated with pregnancy-related estrogen levels
- Estradiol E2: Often used for menstrual cycle, fertility, menopause, and general estrogen evaluation
- Estrone E1: Often associated with postmenopausal estrogen evaluation
If your provider requested estradiol or estrone, do not order estriol unless you have confirmed it is the correct test.
Important Pregnancy Warning
If you are pregnant and have vaginal bleeding, severe abdominal pain, pelvic pain, decreased fetal movement, fluid leakage, severe headache, vision changes, severe swelling, high blood pressure concerns, contractions before term, fever, or any urgent pregnancy concern, seek medical care promptly.
Do not use this test as a substitute for prenatal care, emergency evaluation, fetal monitoring, ultrasound, or medical treatment.
Screening and Lab Access Only
LabReqs and SchoolTiters provide access to lab testing. We do not diagnose pregnancy complications, fetal conditions, infertility, hormone disorders, or any medical condition.
This test may provide useful lab information, but results should be reviewed with a licensed healthcare provider, especially during pregnancy or when results are abnormal.
Important Limitations
- This test measures estriol only.
- This test is not a complete prenatal screening panel.
- This test does not include AFP, hCG, inhibin-A, estradiol, estrone, progesterone, or other hormone markers unless ordered separately.
- A single estriol result may be limited and may not show the full clinical picture.
- Estriol levels may vary based on pregnancy stage, timing, lab method, medications, and other factors.
- This test does not diagnose fetal abnormalities, placental problems, pregnancy complications, or hormone disorders by itself.
- Results should be interpreted by a healthcare provider with your medical history and pregnancy details if applicable.
Before Ordering
- Confirm that you need an estriol E3 test and not estradiol E2 or estrone E1.
- If your provider ordered this test, follow their timing instructions.
- If you are pregnant, confirm whether your provider wants estriol alone or a complete prenatal screening panel.
- Tell your provider about pregnancy stage, medications, hormone therapy, supplements, and medical history.
- If your result is abnormal, review it with a licensed healthcare provider.
How It Works
- Order online.
- Receive your lab order. A doctor's order is included.
- Visit a participating lab location.
- Provide a blood sample.
- Receive your results. Review abnormal results with a healthcare provider.
Why Choose This Estriol Blood Test?
✅ Measures estriol E3 hormone levels
✅ Useful for provider-directed pregnancy-related hormone testing
✅ Low-cost testing option
✅ No insurance required
✅ Doctor's order included
✅ Convenient online ordering
✅ Results can be shared with your healthcare provider
Frequently Asked Questions
What does the Estriol Blood Test measure?
This test measures estriol, also called E3, in the blood.
Is estriol the same as estradiol?
No. Estriol and estradiol are different estrogen hormones. Estriol is most commonly associated with pregnancy-related hormone testing, while estradiol is often used for general reproductive hormone evaluation.
Is this test used during pregnancy?
Estriol is commonly associated with pregnancy-related hormone evaluation. If you are pregnant, results should be reviewed with your OB/GYN or healthcare provider.
Is this the same as a triple screen or quad screen?
No. This is an estriol test only. Triple screen and quad screen panels include multiple markers and must be ordered separately if needed.
Can this test diagnose pregnancy problems?
No. This test provides lab information only. It does not diagnose fetal conditions, placental problems, or pregnancy complications by itself.
Is this test low cost?
Yes. This product is designed to provide a low-cost option for estriol testing without using insurance.
Do I need to fast?
Fasting is usually not required unless your healthcare provider or lab instructions tell you otherwise. Drinking water before your blood draw is recommended.
Is a doctor's order included?
Yes. A doctor's order is included with this lab test.
Order Your Estriol E3 Blood Test
Use this low-cost test when you need convenient access to estriol hormone testing for provider-directed pregnancy-related or estrogen evaluation.
Order your Estriol E3 Blood Test today.
Estriol
$ 99.99
