What's this test for?

This test is ideal if you're experiencing unexplained fatigue, unexpected weight gain or loss, feeling unusually cold or hot, mood swings, or changes in energy levels. It helps identify whether your thyroid gland is overactive or underactive, which can explain many frustrating symptoms that affect your daily life. Many people use this test when they suspect their metabolism, energy, or weight issues might be thyroid-related 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 mood issues. The notes provide actionable guidance on diet, lifestyle adjustments, supplement suggestions, or when to follow up with your doctor or 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 considering treatment options.

What's included in this test?

This panel measures Thyroid Stimulating Hormone (TSH), Free T4 (Thyroxine Free), and Free T3 (Tri-iodothyronine Free). This panel measures three key thyroid markers that work together to give you a complete picture of thyroid function. TSH shows how hard your body is working to stimulate thyroid hormone production, while Free T4 and Free T3 measure the actual thyroid hormones circulating in your blood that control metabolism, energy, body temperature, and weight. Together, these measurements help identify whether your thyroid is underactive, overactive, or functioning optimally.

How should I prepare for this test?

No fasting is needed for this test, which makes it very convenient. You can eat and drink normally before your blood draw. However, if you're taking thyroid medication, it's best to take your blood test before your daily dose or discuss timing with your healthcare provider for the most accurate results.

Who should consider getting this test?

This test is essential for anyone experiencing unexplained fatigue, weight changes, temperature sensitivity, hair loss, or mood issues. It's particularly important for women who are pregnant or trying to conceive, people with a family history of thyroid disease, and anyone already being treated for thyroid conditions who need regular monitoring. If you've been feeling off but can't pinpoint why, thyroid testing is a great starting point.

What symptoms indicate I may need this test?

Common symptoms that suggest thyroid issues include constant tiredness despite adequate sleep, unexplained weight gain or difficulty losing weight, feeling cold when others are comfortable, dry skin and brittle hair, constipation, depression or brain fog, and muscle weakness. You might also experience the opposite: unexplained weight loss, feeling too hot, rapid heartbeat, anxiety, or trouble sleeping if your thyroid is overactive.

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, managing stress through yoga or meditation, and exercising regularly can help balance thyroid hormones naturally. Limiting processed foods, avoiding excessive raw cruciferous vegetables if you have thyroid issues, and maintaining a healthy weight can also support optimal thyroid function.

What is TSH and why does it matter?

TSH (Thyroid Stimulating Hormone) is produced by your pituitary gland and tells your thyroid how much hormone to make. When TSH is high, it means your thyroid isn't producing enough hormone and your body is working harder to stimulate it, which indicates hypothyroidism. When TSH is low, your thyroid may be producing too much hormone, indicating hyperthyroidism. TSH is often the first indicator that something is off with thyroid function.

What does high TSH mean?

High TSH typically indicates hypothyroidism, meaning your thyroid is underactive and not producing enough thyroid hormone. This causes your pituitary gland to release more TSH to try to stimulate thyroid hormone production. Symptoms often include fatigue, weight gain, feeling cold, dry skin, constipation, and sluggishness. Checking Free T4 and Free T3 levels alongside TSH helps confirm the diagnosis and guide treatment decisions.

How often should I retest my thyroid levels?

If you're starting or adjusting thyroid medication, your doctor will typically retest every 6-8 weeks until your levels stabilize in the optimal range. Once stable on medication, testing every 6-12 months is standard for ongoing monitoring. If you're testing for the first time with normal results but persistent symptoms, consider retesting in 3-6 months, as thyroid function can change over time.

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 Gain, Fatigue & Energy Issues

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 Fatigue

Thyroid TSH w/ Free T4 & Free T3

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 Fatigue

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