Other names: T3 Uptake, T-Uptake, T3 UPTAKE
A T3 resin uptake (also called a T3 uptake or T3RU) is a blood test performed as part of an evaluation of thyroid function.
The T3 resin uptake is used by doctors to estimate the amount of TBG in the blood, and how much T4 and T3 in the blood is free form and available to affect the body.
The thyroid is a gland in the neck that produces the hormones that help regulate many body processes, including the following:
- growth,
- energy balance,
- body temperature,
- and heart rate.
Thyroid function involves the interaction of many hormones, including triiodothyronine (T3) and thyroxine (T4). Both of these hormones exist in two forms in the blood. The more abundant forms are bound to a carrier protein called thyroxin-binding globulin (TBG), which helps transport the hormones through the body. The less abundant forms circulate unattached or "free." Only the free forms of the thyroid hormones (free T4 and free T3) are available to affect body processes.
If there's either too much or too little TBG in the blood, the measurements of total T3 and T4 levels will be affected, which can make it difficult for doctors to tell whether a person actually has a thyroid problem without also knowing the results of the T3 resin uptake.
Some people have an inherited condition that involves high TBG levels despite normal thyroid function.
Your medical lab tests hold vital information about your health. Our tools help you understand what's going on and how to take action.
Cancel or upgrade anytime
High T3 uptake levels generally indicate a decrease in the levels of thyroxine-binding globulin (TBG) in the blood. This condition suggests that a larger proportion of the available thyroid hormones are free or unbound, as opposed to being attached to TBG. It's important to remember that T3 uptake is not a direct measure of the T3 hormone itself but rather reflects the binding capacity of the proteins in the blood that carry thyroid hormones.
High T3 uptake can be associated with several conditions, including:
- Lowered TBG Levels: This can be due to genetic factors, or it might be seen in conditions that reduce protein levels in general, such as nephrotic syndrome (a kidney disorder).
- Hyperthyroidism: In some cases, an overactive thyroid can lead to increased levels of free thyroid hormones, which can be reflected as high T3 uptake.
- Androgen Therapy: Taking androgens or anabolic steroids can lower TBG levels.
- Acute Illness: Some acute illnesses can temporarily alter TBG levels and thyroid hormone binding.
- Chronic Liver Disease: Certain liver conditions can lead to changes in the levels of TBG and other proteins.
As with low T3 uptake levels, high T3 uptake should be interpreted in the context of other thyroid function tests, such as T4 and TSH levels. The overall pattern of these test results helps to give a more accurate picture of thyroid function and can guide diagnosis and treatment decisions. It is essential to consult with healthcare professionals to understand these results properly and to determine the appropriate course of action.
Anthony
Unlimited Plan Member since 2021
I have been using Healthmatters.io since 2021. I travel all over the world and use different doctors and health facilities. This site has allowed me to consolidate all my various test results over 14 years in one place. And every doctor that I show this to has been impressed. Because with any health professional I talk to, I can pull up historical results in seconds. It is invaluable. Even going back to the same doctor, they usually do not have the historical results from their facility in a graph format. That has been very helpful.
Karin
Advanced Plan Member since 2020
What fantastic service and great, easy-to-follow layouts! I love your website; it makes it so helpful to see patterns in my health data. It's truly a pleasure to use. I only wish the NHS was as organized and quick as Healthmatters.io. You've set a new standard for health tracking!
Paul
Healthmatters Pro Member since 2024
As a PRO member and medical practitioner, Healthmatters.io has been an invaluable tool for tracking my clients' data. The layout is intuitive, making it easy to monitor trends and spot patterns over time. The ability to customize reports and charts helps me present information clearly to my clients, improving communication and outcomes. It's streamlined my workflow, saving me time and providing insights at a glance. Highly recommended for any practitioner looking for a comprehensive and user-friendly solution to track patient labs!
Low T3 uptake levels typically indicate an alteration in the binding proteins for thyroid hormones in the blood, rather than a direct change in the thyroid gland's function itself. It's important to understand that T3 uptake is not a direct measurement of the T3 hormone. Instead, it's a test that helps to estimate the amount of thyroxine-binding globulin (TBG) in the blood, a protein that carries thyroid hormones.
In general, low T3 uptake can be seen in conditions where the level of TBG is increased. This can occur in various situations, such as:
- Pregnancy: Hormonal changes during pregnancy can increase TBG levels.
- Estrogen Therapy: Taking estrogen, such as in birth control pills or hormone replacement therapy, can increase TBG levels.
- Liver Disease: Certain liver conditions can alter TBG levels.
- Genetic Factors: Some people naturally have higher levels of TBG.
- Acute Illness: Sometimes, severe illness can impact TBG levels.
However, interpreting T3 uptake levels requires considering them in conjunction with other thyroid function tests, like T4 and TSH levels. This comprehensive approach helps to accurately assess thyroid function and diagnose potential thyroid disorders. It's always recommended to consult with a healthcare professional for a precise diagnosis and understanding of test results.
Guiding our users for 10 years to promptly understand, track, and act on their laboratory results.
$15/month
Cancel your subscription at any time.
$250/once
full premium version
$45/month
track your clients’ labs
Cancel your subscription at any time.
Guiding our users for 10 years to promptly understand, track, and act on their laboratory results.
Personal plans
track personal results
Professional Plan
track multiple client's results
$15/month
$250/once
own it for life
$45/month
for health professionals
Complete Plan
Unlimited Plan
$15 / month
$250 full version
Are you a health professional?
Level up your lab report analysis with our Pro plan, built for health practitioners like you.
Health Business Account
$45/month
Cancel your subscription at any time.
Unlock additional Pro plans when you sign up.
Anthony
Unlimited Plan Member since 2021
I have been using Healthmatters.io since 2021. I travel all over the world and use different doctors and health facilities. This site has allowed me to consolidate all my various test results over 14 years in one place. And every doctor that I show this to has been impressed. Because with any health professional I talk to, I can pull up historical results in seconds. It is invaluable. Even going back to the same doctor, they usually do not have the historical results from their facility in a graph format. That has been very helpful.
Karin
Advanced Plan Member since 2020
What fantastic service and great, easy-to-follow layouts! I love your website; it makes it so helpful to see patterns in my health data. It's truly a pleasure to use. I only wish the NHS was as organized and quick as Healthmatters.io. You've set a new standard for health tracking!
Paul
Healthmatters Pro Member since 2024
As a PRO member and medical practitioner, Healthmatters.io has been an invaluable tool for tracking my clients' data. The layout is intuitive, making it easy to monitor trends and spot patterns over time. The ability to customize reports and charts helps me present information clearly to my clients, improving communication and outcomes. It's streamlined my workflow, saving me time and providing insights at a glance. Highly recommended for any practitioner looking for a comprehensive and user-friendly solution to track patient labs!
Healthmatters is a highly-personalized health dashboard.
Instead of searching for your lab results in different places or tracking them down from different providers, Healthmatters houses, organizes, and interprets them all in one central location.
With a Healthmatters account, you can dive into the details of each biomarker and gain insights into the meaning behind your medical test data, anytime, anywhere.
For our professional users, Healthmatters provides intuitive tools that not only streamline analysis but also save valuable time when delving into your client's lab report history.
Healthmatters.io personal account provides in-depth research on 4000+ biomarkers, including information and suggestions for test panels such as, but not limited to:
You can combine all test reports inside your Healthmatters account and keep them in one place. It gives you an excellent overview of all your health data. Once you retest, you can add new results and compare them.
If you are still determining whether Healthmatters support your lab results, the rule is that if you can test it, you can upload it to Healthmatters.
While we work with many popular labs, we welcome reports from lots of other places too.
It's as simple as this: if you can get a test done, you can upload it to Healthmatters and we can interpret results from any lab out there. If laboratories can analyze it, we can interpret it.
If you’re on the hunt for a specific biomarker, contact us and we'll add it to our database. Anything from blood, urine, saliva, or stool can be uploaded, understood, and tracked with your Healthmatters account.
There are two ways to add your test reports to your Healthmatters account. One option is to input the data using the data entry forms. The other method is to utilize our "Data entry service."
Our data entry forms offer an easy, fast, and free way for you to input the reports yourself. Self-entry allows you to add an unlimited number of reports at no cost. We make the self-entry process user-friendly, providing dozens of templates that pre-populate the most popular laboratory panels and offering instant feedback on entered values.
For those who prefer assistance, we offer a "Data entry service" to help you input your data. Simply attach an image or file of your lab test results, and a qualified team member from our data entry team will add the results for you.
We support various file types, including PDFs, JPGs, or Excel. This service is particularly useful if you have many reports to upload or if you're too busy to handle the data entry yourself.
Our special data entry service makes it easy to add your results to your private dashboard. Just attach an image or a file of your lab test results, and our skilled data entry team will do the work for you. It's all done by humans, ensuring that your data is entered accurately and with personal care for each client.
Depending on your account, the data entry service can be included for free or come at an additional cost of $15 per report.
For users on the Complete monthly plan, the first report is entered free of charge, and each additional report incurs a fee of $15.
Unlimited account holders enjoy the entry of ten reports without charge. Subsequent reports are subject to a $15 fee per report.
Additionally, users on the Complete plan can upgrade to a yearly subscription from the account settings. The annual subscription includes a data entry service for five reports.
The Unlimited plan is a one-time purchase for $250, and it covers your account for a lifetime with no additional payments.
For the Complete plan, the cost is $15 per month. You have the flexibility to cancel it anytime through your account settings, ensuring no further payments. To avoid charges, remember to cancel at least a day before the renewal date. Once canceled, the subscription remains active until the end of the current billing cycle.
Additionally, you can upgrade to the yearly Advanced plan from within your account. The annual cost is $79, and it comes with a data entry service for five reports.
You can always upgrade to a lifetime version with a prorated price from a monthly or yearly subscription.
Simply log in and navigate to your account settings to cancel your subscription. Scroll down to locate the 'Cancel' button at the bottom of the page. Ensure you cancel at least one day before the renewal date to prevent any charges. Once cancellation is requested, the subscription remains active until the conclusion of the current billing cycle.
Our goal has been to make your Healthmatters account as intuitive as possible.
We’ve crafted multiple ways for you to navigate your data, whether you're glancing at a single report or delving into your historical test reports.
1. Graph View:Dive into a visual journey with our biomarker graphs, showcasing over 40 data points. Combining years of results unveils trends, empowering you to make informed decisions. Our visualization tools make it a breeze to compare and understand changes over time, even if your results are from different labs. A search function and filters simplify the exploration of extensive data, allowing you to focus on what needs attention.
2. All Tests ViewExplore neatly organized reports on a timeline, highlighting crucial details like dates, critical results, and lab/panel names. Each report opens up to reveal in-depth descriptions and additional recommendations for each biomarker. The history of previous results is just a click away, and you can download a comprehensive report for deeper insights. Color-coded and user-friendly, it's designed for easy reading, understanding, and navigation.
3. Table View:For a holistic view of all biomarkers side by side, our table view is your go-to. Results are neatly displayed in a categorized and dated table, ideal for those with an extensive test history. Utilize sorting, filters, and color-coding to enhance your analysis and gain extra insights.
Yes, you can download information from your account. We can compile your labs into a CSV file. To download all your labs, you can go to Account Settings, and at the bottom of the page, you will find a link to download your information.
Yes, you can print your report. To do so, navigate to "All tests" and open the report you wish to print. You'll find a print button in the right corner of the report. Click on it, and your browser's print window will open. If you prefer to print in a bigger typeface, adjust the scale using the print window settings.
Yes, you can! We highly recommend activating Two-Factor Authentication (2FA) for your account. To do so, please navigate to the "Profile and Security" section of your account, where you will find instructions for activating 2FA.
Yes, you can. When entering values for the biomarker, you will see an "Edit Range" button. Click this button, and you'll have the option to enter a custom range.
A personal account is all about keeping your own lab test results in check. It's just for you and your personal use.
The professional account is designed for health professionals who wish to track and organize their clients' laboratory results.
To learn more about Healthmatters Pro, please refer to the professional page.
At HealthMatters, we're committed to maintaining the security and confidentiality of your personal information. We've put industry-leading security standards in place to help protect against the loss, misuse, or alteration of the information under our control. We use procedural, physical, and electronic security methods designed to prevent unauthorized people from getting access to this information. Our internal code of conduct adds additional privacy protection. All data is backed up multiple times a day and encrypted using SSL certificates. See our Privacy Policy for more details.
Anti-Thyroglobulin ab. (0-39), Antithyroid Antibody, Free Thyroxine, Free Thyroxine Index, Parathyroid Hormone (PTH), Serum, Reverse T3, Serum, T3 - Triiodothyronine (ng/mL), T3, Free (Triiodothyronine), T4, Free, T4, Total (Thyroxine), Thyroid Peroxidase Antibodies (Anti-TPO Ab), Thyroid Stim Immunoglobulin, Thyroid-Stimulating Hormone (TSH), Total T3, TRAb (TSH Receptor Binding Antibody), Triiodothyronine (T3) Uptake
