How many treated hypothyroid patients' TSH has fallen below range even when both their thyroid hormones are in normal range and when they have no symptoms or signs of hyperactivity or hypermetabolism? In my observation on thyroid patient forums, the answer is "too many." It's common among thyroid patients to resort to such forums for … Continue reading TSH “can be very misleading” during thyroid therapy, say researchers
Table 17.1 in Braverman & Cooper's 2013 chapter in Werner & Ingbar's The Thyroid textbook, 10th edition, lists many causes of thyrotoxicosis. The only time the TSH _hormone_ is listed as a cause of thyrotoxicosis is in the case of "Inappropriate TSH hypersecretion." If thyrotoxicosis can occur when TSH is inappropriately _high_ or non-suppressed in … Continue reading Thyrotoxicosis can occur with high or normal TSH?
Our medical system has invested so much in the TSH test that we've given it authority to override medical discernment about thyrotoxicosis. The oft-repeated mantras that "TSH is the most sensitive and specific test" and "the only necessary test" have blinded many doctors to the diverse influences that can suppress or inflate TSH secretion. Many … Continue reading Thyrotoxicosis vs. Low TSH
Posts in this series July 2019 Thyrotoxicosis? Many factors can lower TSHThyrotoxicosis: Symptoms and signsThyrotoxicosis vs. Low TSHThyrotoxicosis can occur with high or normal TSH?TSH "can be very misleading" during thyroid therapy, say researchersHow TSH ultrashort feedback works, and antibody interferencePregnancy thyrotoxicosis vs just a low TSH due to HCG hormone REFERENCES Anderson, J. L., … Continue reading References for Thyrotoxicosis vs. Low TSH series
This post walks through the process of using the SPINA-Thyr to interpret thyroid lab test results. OVERVIEW SPINA-Thyr is a free diagnostic application developed by research endocrinologists who use it in peer-reviewed medical research. SPINA-Thyr has been in development since the late 1990s under the leadership of Dr. Johannes Dietrich, Specialist in internal medicine, endocrinology and … Continue reading Analyze thyroid lab results using SPINA-Thyr