What's this test for?

This test is ideal if you're experiencing unexplained fatigue, weight changes (either gain or loss), feeling unusually cold or hot, mood swings, or hair loss. It helps identify whether your thyroid gland is producing too much or too little thyroid hormone, which controls your metabolism, energy levels, and overall well-being. Many people use this test when they suspect their symptoms are related to thyroid problems but want concrete answers.

What happens after I get my results?

You'll get easy-to-understand doctor notes that explain your thyroid function and how it relates to symptoms like fatigue, weight changes, or temperature sensitivity. The notes provide actionable guidance on diet, supplements, lifestyle adjustments, or when to follow up with your doctor or an endocrinologist. Along with your standard lab report, you can use our trends feature to monitor your thyroid levels over time, especially helpful if you're making lifestyle changes or monitoring a thyroid condition.

What's included in this test?

This panel measures Total T4 (Thyroxine) and Free T4 Index (T7). This test measures Total T4 (thyroxine), which is the main thyroid hormone your body produces, and the Free T4 Index (T7), which helps assess how much thyroid hormone is actually available for your body to use. Together, these measurements provide a comprehensive picture of your thyroid function and help identify whether your thyroid is underactive (hypothyroidism) or overactive (hyperthyroidism), both of which can significantly impact your energy, weight, mood, and metabolism.

How should I prepare for this test?

No special preparation is typically required for this test. You can eat and drink normally before your blood draw. However, if you're taking thyroid medication, it's best to take your test before your morning dose for the most accurate results. Let the lab know about any medications or supplements you're taking, as some can affect thyroid test results.

When will I get my results?

Most thyroid test results are available within 1-2 business days after your blood sample reaches the lab. You'll receive an email notification as soon as your results are ready to view in your secure online account. Complex cases may occasionally take slightly longer, but thyroid function tests are generally processed quickly.

Who should consider getting this test?

This test is ideal for people experiencing unexplained fatigue, weight changes, temperature sensitivity, or mood issues. It's especially important for women who are pregnant or trying to conceive, anyone with a family history of thyroid disease, and people already being treated for thyroid conditions who need monitoring. Adults over 60 and those with autoimmune conditions should also consider regular thyroid screening.

What symptoms indicate I may need this test?

Common symptoms of thyroid problems include persistent fatigue even after adequate sleep, unexplained weight gain or loss, feeling unusually cold or hot, dry skin and brittle hair, constipation or digestive issues, mood changes like depression or anxiety, and irregular menstrual periods in women. If you're experiencing several of these symptoms together, it may indicate a thyroid issue worth investigating.

How can I naturally support my thyroid function?

Supporting thyroid health starts with ensuring adequate iodine and selenium intake through foods like fish, eggs, Brazil nuts, and dairy products. Getting enough quality sleep (7-9 hours), managing stress through yoga or meditation, and exercising regularly can help balance thyroid hormones. Limiting processed foods, avoiding excessive soy products, and ensuring adequate vitamin D levels may also support healthy thyroid function.

What does high T4 mean?

High T4 levels typically indicate an overactive thyroid (hyperthyroidism), which means your thyroid is producing too much hormone. This can speed up your metabolism, causing symptoms like unexplained weight loss, rapid heartbeat, anxiety, tremors, increased sweating, and difficulty sleeping. It's often caused by conditions like Graves disease, thyroid nodules, or inflammation of the thyroid gland.

What does low T4 mean?

Low T4 levels usually indicate an underactive thyroid (hypothyroidism), meaning your thyroid isn't producing enough hormone. This slows down your metabolism and can cause symptoms like fatigue, weight gain, feeling cold, constipation, dry skin, hair loss, and depression. Common causes include Hashimoto's thyroiditis (an autoimmune condition), iodine deficiency, or problems with the pituitary gland.

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.

Thyroid Test - Weight & Energy Issues | Private MD

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]

Thyroid Test for Weight Changes and Tiredness

Thyroxine (T4) Total

90 day happiness guarantee

Prescription & fees included

Easy to understand results

Fast & convenient

90 day happiness guarantee

Prescription & fees included

Easy to understand results

Fast & convenient

What's this test for?

How should I prepare for this test?

What's included in this test?

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

Thyroid Test for Weight Changes and Tiredness

90 day happiness guarantee

Prescription & fees included

Easy to understand results

Fast & convenient

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