Hickory Hills, IL
A 28-year-old male asked:

My thyroid stim.hormone value is 1.680? is that good or bad? should i ask for a t3 (liothyronine) t4 test just to be sure cause i heard the tsh isnt always accruate?

1 doctor answer2 doctors weighed in
Dr. Alan Feldman
43 years experience
TSH accurate: Tsh is the most sensitive indicator of thyroid function. If it is normal (as yours is), it is highly unlikely that you have a problem with your thyroid. There are rare problems of the pituitary gland in which the TSH is not an accurate test. In that case a free T4 level is helpful. Despite what you may read on the internet, T4 and t3 (liothyronine) levels are usually only helpful if the TSH is abnormal.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Oct 1, 2019


Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.