What's this test for?

This test is ideal if you're experiencing symptoms of an adrenal hormone imbalance, such as unusual blood pressure changes, salt cravings, or unexplained fatigue. It's often used to help confirm a very rare condition called 18-hydroxylase enzyme deficiency, which affects how your body makes the hormone aldosterone. Your results give a clearer picture of how your adrenal glands are functioning.

What happens after I get my results?

Your results will show up in your account with each value explained alongside its normal range, so you know exactly where you stand. If your corticosterone level is outside the expected range, the report will point you toward simple next steps, and if a value looks dangerously abnormal, it will flag that you should seek medical care right away. You can download a standard lab report anytime from your account for your records. If you retest down the road, the trends feature lets you see how your levels change over time.

What symptoms indicate I may need this test?

Common signs that may point to an adrenal hormone issue include low blood pressure, dizziness when standing up, salt cravings, unusual fatigue, or muscle weakness. Some people also notice changes in blood pressure that don't respond well to typical treatment. If you have a family history of rare adrenal enzyme disorders, that's another reason this test might be relevant for you.

How can I naturally support healthy adrenal function?

Getting consistent, quality sleep is one of the best things you can do, since your adrenal glands are very sensitive to stress and rest patterns. Eating a balanced diet with enough salt and potassium (found in foods like bananas and leafy greens) supports normal hormone balance. Managing everyday stress through activities like walking, light exercise, or breathing exercises can also help keep your hormone levels steadier. Staying well hydrated matters too, especially if you notice symptoms like dizziness.

When will I get my results?

Results are typically ready within about 7 days of your lab visit. Once ready, you'll be able to view them directly in your account, with plain-language explanations for each value. You'll also get a downloadable report you can save or share as needed.

Who should consider this test?

This test is a good fit for people with symptoms of adrenal hormone imbalance that haven't been explained by other testing, especially those with unusual blood pressure patterns or salt cravings. It's also relevant if you have a family history of rare adrenal enzyme conditions like 18-hydroxylase deficiency. People already being evaluated for aldosterone-related disorders may find this test especially useful as part of a broader picture.

What is corticosterone and why does it matter?

Corticosterone is a hormone made by your adrenal glands that plays a role in your body's stress response and helps regulate other hormones, including aldosterone, which controls your body's salt and water balance. Measuring it helps show whether an enzyme your body needs to make aldosterone properly is working as it should. This matters because problems with this pathway can affect blood pressure and overall hormone balance.

What does a high corticosterone-to-18-hydroxycorticosterone ratio mean?

An increased ratio can be a sign of 18-hydroxylase enzyme deficiency, a rare condition that affects how your body produces aldosterone. This can lead to issues with blood pressure regulation and salt balance. If your results show this pattern, it's worth discussing lifestyle steps like monitoring your blood pressure and salt intake while considering further testing.

How often should I retest?

Retesting frequency really depends on your individual situation and whether your initial results were within the normal range. If your levels were normal and you're not experiencing new symptoms, retesting once a year or as advised is usually sufficient. If you're monitoring a known imbalance, retesting every few months can help you track whether your levels are moving in the right direction.

What should I do if my results are abnormal?

Start by reviewing the explanation provided with your report so you understand what your specific number means. Focus on manageable lifestyle steps such as staying hydrated, balancing your salt intake, and managing stress, since these can all influence adrenal hormone levels. If your results are significantly outside the normal range or you're having severe symptoms like fainting or very low blood pressure, seek medical care promptly.

Getting your blood test with us is easy, private & backed by the power of science.Long story short: In the test options, use the filters or search box to narrow your choices and find the test you want. If you need a hand navigating through options, text our super friendly support team at 754-799-7833, and we'll provide tailored suggestions to help you find the ideal test. Once your order is placed, we’ll create your doctor’s lab order remotely, without any need for you to make a trip to a doctor in person or to talk to the doctor. Expect to receive your doctor’s lab order right in your inbox. It will also be in your patient portal if you need to find it later. We’ll also include instructions regarding fasting and other requirements for your test. Your patient portal will be auto-created hassle-free during checkout. If this is your first time ordering, you'll be prompted to create a password for instant login access to your patient portal. It's a quick way to conveniently access your orders and results whenever you want. When you’re ready, visit one of our 4,000 locations. Just bring your ID – no printing or faxing of your lab order is needed, as your order and details will already be in the lab system. Note that most lab locations don’t accept walk-ins, so it’s best to book an appointment in advance. Don’t worry – we’ll provide detailed instructions along the way. You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy! If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com and we'll gladly help you.

How do I know which test to get?

In the test options, find the test you want. If you’re not sure which test to get, we can lend a hand in finding the right option. Just text or call us at 754-799-7833, email us at support@privatemdlabs.com, and we'll gladly help you. We've got your back and reply quickly.

When will my lab results be available?

Most test results will be available within 1–3 business days. Once they're ready, we'll send an email and text message to let you know. After your blood draw, just hang tight and don't worry – we'll keep you updated and in the loop! If you have any further questions, please text us at 754-799-7833 or email support@privatemdlabs.com, and we'll gladly help you.

Is it possible to make changes to my lab order if I made a mistake with the name, date of birth, or any other details?

Absolutely! We totally understand that errors can happen. No worries, we're here to help you. Just reach out to us via text at 754-799-7833 or shoot us an email at support@privatemdlabs.com. Remember to include your order number and let us know the correct information you’d like to update. Our awesome team will jump right in and make sure everything is sorted out and accurate for you. There are no changes necessary if your address is wrong on the requisition though. We don’t mail anything out. Our lab requires an address to be listed to generate an order.

Do you accept health insurance?

Only HSA & FSA is accepted. Our services are strictly self-pay and cannot be submitted to your health insurance provider except for Health Savings Accounts or Flexible Savings Accounts. This policy applies to all insurance companies, including federal health insurance programs like Medicare. If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com.

Can I cancel my order?

Yes. We get it – sometimes your needs change. As long as your samples haven’t been collected yet, we’re happy to help you cancel your order. If you have any further questions, please text us at 754-799-7833 or email support@privatemdlabs.com. You can read more about our cancellation policy here.

How can I find a lab location near me?

During the ordering process, you’ll be able to select a specific lab near you, with no strings attached! You can switch it up later easily and visit any of our authorized locations as long as it’s the same lab company you selected your test for (Quest Diagnostics or Labcorp). Before you proceed with your order, feel free to browse through all our lab locations here. This will give you the peace of mind of knowing that there's a lab nearby your home, office or your favorite gym. If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com and we'll gladly help you.

Corticosterone Test - Adrenal Hormone Function Check

Getting your blood test with us is easy, private & backed by the power of science.

Long story short:

In the test options, use the filters or search box to narrow your choices and find the test you want.
If you need a hand navigating through options, text our super friendly support team at 754-799-7833, and we'll provide tailored suggestions to help you find the ideal test.
Once your order is placed, we’ll create your doctor’s lab order remotely, without any need for you to make a trip to a doctor in person or to talk to the doctor. Expect to receive your doctor’s lab order right in your inbox. It will also be in your patient portal if you need to find it later. We’ll also include instructions regarding fasting and other requirements for your test. Your patient portal will be auto-created hassle-free during checkout.
If this is your first time ordering, you'll be prompted to create a password for instant login access to your patient portal. It's a quick way to conveniently access your orders and results whenever you want.
When you’re ready, visit one of our 4,000 locations. Just bring your ID – no printing or faxing of your lab order is needed, as your order and details will already be in the lab system.
Note that most lab locations don’t accept walk-ins, so it’s best to book an appointment in advance. Don’t worry – we’ll provide detailed instructions along the way.
You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy!

754-799-7833

[email protected]

Corticosterone Blood Test for Adrenal Hormone Function

Corticosterone

Prescription & all lab fees included

Doctor's guidance included

Fast & convenient

Prescription & all lab fees included

Doctor's guidance included

Fast & convenient

What's this test for?

What happens after I get my results?

What symptoms indicate I may need this test?

Here’s why 1,000,000+ customers chose us for affordable hassle-free private blood testing.

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Corticosterone Blood Test for Adrenal Hormone Function

Prescription & all lab fees included

Doctor's guidance included

Fast & convenient

1,000,000+ blood tests later, here's what our customers say