Urine Thyroid Hormones (T3/T4)
There is no one perfect way, no one symptom nor test result, that will properly diagnose low thyroid function or hypothyroidism. The key is to look at the whole picture – your symptoms and your blood tests – and then decide.
To get a complete picture, a 24-hour urine test for free T3 can be helpful in hard-to-diagnose cases.
The urine thyroid test serves as a valuable tool for detecting those patients that are suffering from thyroid dysfunction, particularly low grade hypothyroidism who might otherwise go undetected through standard blood tests. It is important to use this test as an adjunct to other indicators of thyroid function, such as body temperature, symptomatology and standard blood thyroid tests.