Know Your ALT Normal Range When Labs and Experts Disagree
Your ALT normal range depends on who sets it: labs often print up to 36–40 U/L, while a 2002 study found healthy limits of 30 (men) and 19 (women).
What Your ALT Blood Test Number Really Tells You
ALT blood test flagged high? One weightlifting session raised ALT for 7+ days in a study, one of several causes to rule out first.
Borderline TSH results and the right questions to ask
A borderline TSH is confirmed on a second test before treatment — guidelines repeat it
at two to three months. Here's what to ask in between.
Know what the undiagnosed thyroid disease statistics show
Undiagnosed thyroid disease statistics get quoted everywhere. NHANES III tested 17,353 people and found 4.6% with hypothyroidism, mostly subclinical.
How to Read Your Thyroid Panel and Check the Right Numbers
Reading a thyroid panel starts with TSH, not the value flagged in red. Free T4 comes next, and the range that decides your result is your own lab's.
What at-home thyroid test accuracy really means for your TSH
At-home thyroid test accuracy splits in two: mail-in kits analyzed by a lab track vein-draw TSH closely, while rapid strip tests read at home do not.
What a TSH test cost really looks like, insured or not
TSH test cost depends on one code: CPT 84443. Uninsured patients can request a
written estimate first, and dispute bills $400 over it.
A clear read on TPO antibodies and TSH in Hashimoto’s
TPO antibodies and TSH answer different questions — one measures function, the other cause. NHANES III found 11.3% of US adults carry them. See the grid.
High TSH causes that are easy to overlook
High TSH causes are not all thyroid. Assay interference affects an estimated 0.05% to 6% of samples, depending on the platform used.
Know How Often to Test TSH in Your Situation
TSH retest timing isn't one number. A borderline high result is usually repeated in 2–3 months, and many return to normal on their own.