"As explained well in the revised STTM book, which you should have on hand and bookmarked at the doctors office. The book is in English, Spanish, German and Swedish.
TSH: for diagnosis of hypopituitary, NOT to diagnose or dose your hypothyroidism (unless it’s high). If you allow a doctor to diagnose or dose you by this lab test and range i.e. to say you are normal simply because it’s in range or below 10…you’ll could still be hypothyroid.
Free #T4 and Free #T3 (note the word “free”–important since it measures ... ..more
1) Biopterin/Neopterin: For those with A1298C mutations, #BH4 (also known as tetrahydrobiopterin) levels are typically quite low. This test provides insight to how low these levels are and why. If neopterin levels are high, then I am considering the possibility of a lingering infection, inflammation or chronic immune response that is preventing #biopterin from being formed. Thus, this test provides information not only potentially low biopterin levels but also why they may be low.
If a doctor simply prescribes BH4 without understanding the need to address the inflammation and chronic infections, it is band-aide treatment over a gaping wound ... ..more