Day: July 28, 2018

Interpreting Free T3 and Free T4 in therapy

by thyroidpatientsca, posted in Free T3 test, Free T4 test, FT3:FT4 ratio, Reference ranges, Therapy paradigms

Hypothyroidism is a thyroid hormone insufficiency, so it's only logical to measure the success of therapy by the goal: T4 and T3 thyroid hormone sufficiency. Especially T3 sufficiency, the active hormone. Lab tests like Free T3 and Free T4 can indicate "relative" T3 and T4 sufficiency in bloodstream ... but one has to carefully interpret … Continue reading Interpreting Free T3 and Free T4 in therapy

HISTORY: L-T3 monotherapy in 1957

by thyroidpatientsca, posted in T3-monotherapy, Thyroid pharma, Thyroid science history

Sometimes science does not retain knowledge, but rather chooses to forget. After endocrinology fell in love with L-T4 monotherapy, it was too tempting to forget the history of the OTHER monotherapy -- L-T3 monotherapy. Modern doctors might assume that because they didn't have the TSH test back then, they were blind! They had no way … Continue reading HISTORY: L-T3 monotherapy in 1957