What's this test for?

This test is ideal if you're being evaluated for a thyroid tumor or have already been treated for thyroid cancer and need tissue analyzed to confirm its origin. Thyroglobulin IHC (immunohistochemistry) with interpretation looks at tissue samples under specialized staining to determine whether cells are producing thyroglobulin, a protein made only by thyroid tissue. It's typically used alongside imaging and other pathology work rather than as a routine wellness check.

How should I prepare for this test?

How can I naturally support thyroid tissue health? While this test itself is a tissue-based lab analysis with no consumer prep steps, general thyroid-supportive habits include eating enough iodine-containing foods (like seafood or dairy), managing stress, getting good sleep, and avoiding smoking, which is known to affect thyroid tissue. These habits support overall thyroid wellness but won't change the outcome of a tissue-based diagnostic test like this one.

What's included in this test?

This is a single specialized test: Thyroglobulin analyzed by immunohistochemistry (IHC) with expert interpretation. It matters because thyroglobulin is a protein made only by thyroid cells, so finding it in a tissue sample helps confirm whether unusual or cancerous cells originated in the thyroid. This kind of targeted tissue analysis is different from a routine blood panel — it's used to answer a specific diagnostic question.

What happens after I get my results?

Your results and interpretation will be available in your account, with a written explanation of what the staining pattern means. Because this is a specialized tissue-based test, next steps usually depend on the specific findings — the report will outline whether the result supports a thyroid origin for the tissue examined. You can download the full lab report anytime from your account, and if you need to track findings over time as part of a broader monitoring plan, the trends feature keeps everything organized in one place.

When will I get my results?

Results for this specialized test are typically ready within about 7 days. This turnaround reflects the detailed lab work involved in staining and interpreting tissue samples, which takes longer than a standard blood test. You'll see your report as soon as it's finalized in your account, so no need to call in to check status.

Who should consider this test?

This test is generally considered for people who already have a tissue sample under evaluation — for example, following a biopsy or surgical removal of a suspicious mass — where it's unclear if the tissue originated from the thyroid. It's also used in cases of suspected metastatic thyroid cancer, where doctors need to confirm if cells found elsewhere in the body came from the thyroid. It is not a routine screening test for the general population.

What symptoms might lead someone to need this test?

People are usually referred for this type of test after finding a lump or mass — either in the neck or elsewhere in the body — that needs tissue-level analysis to identify its origin. Symptoms that may lead here include a persistent neck swelling, difficulty swallowing, unexplained hoarseness, or a mass found during imaging for another reason. This test is a follow-up diagnostic step rather than a first-line response to symptoms.

What does a positive thyroglobulin IHC result mean?

A positive result means the tissue sample tested shows thyroglobulin protein, which strongly suggests the cells originated from thyroid tissue. This is helpful information whether the sample came from the thyroid itself or from a suspicious area elsewhere in the body, since it helps confirm the tissue's origin. The full written interpretation in your report will explain what this means in the context of your specific sample.

What does a negative thyroglobulin IHC result mean?

A negative result means the tissue sample did not show thyroglobulin staining, which suggests the cells likely did not originate from thyroid tissue. This can help rule out a thyroid origin when investigating an unusual growth or mass. As with any tissue-based finding, the interpretation notes in your report will give context specific to your sample.

How often should I retest?

This is not a routine test you'd repeat on a regular schedule — it's typically ordered once to answer a specific diagnostic question about a tissue sample. If a new suspicious area or mass is found later, retesting that new sample may be appropriate at that time. Your care plan and any follow-up imaging or monitoring will guide whether further tissue testing is ever needed.

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.

Thyroglobulin IHC Test - Thyroid Tissue Analysis

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]