T3 Reverse, measured through the highly accurate LC/MS/MS (Liquid Chromatography with Tandem Mass Spectrometry) method, is an essential test in the realm of endocrinology, particularly for evaluating thyroid function and metabolic disorders. Reverse T3 (rT3) is a specific form of the thyroid hormone that is often checked in patients with suspected thyroid dysfunction, especially in the context of non-thyroidal illness syndrome or euthyroid sick syndrome. Unlike the active forms of thyroid hormones (T3 and T4), rT3 does not have significant biological activity but is produced as a byproduct of T4 metabolism. The LC/MS/MS method offers superior accuracy and specificity in measuring rT3 levels, making this test a valuable tool for physicians. Elevated levels of rT3 can be indicative of conditions where the body is converting T4 to rT3 instead of the active T3, often seen in states of physiological stress, critical illness, starvation, or after surgery. In these scenarios, high rT3 levels can suggest altered thyroid hormone metabolism, despite normal thyroid gland function. This test is also useful in the context of comprehensive thyroid function assessment, especially in complex cases where routine thyroid tests may not provide a complete picture.
Our specialized data entry service is designed to seamlessly integrate your laboratory results into your private dashboard. Just send in your lab test results—whether it's an image or a file—and our skilled data entry team will handle the rest. We accommodate various file formats like PDFs, JPGs, and Excel.
The first report is complimentary. After that, the data entry service is priced at $15 per report, unless it's part of your subscribed plan. It's an ideal solution whether you have numerous reports to upload or if your schedule doesn't permit self-data entry.
We strive to make the data entry process easy for you. Whether by offering dozens of templates to choose from that pre-populate the most popular laboratory panels or by giving you instant feedback on the entered values. Our data entry forms are an easy, fast, and convenient way to enter the reports yourself. There is no limit on how many lab reports you can upload.
track personal results
track multiple client's results
own it for life
for health professionals
for personal lab results
own it for life
Level up your lab report analysis with our Pro plan, built for health practitioners like you.
Health Business Account
Unlock additional Pro plans when you sign up.