A member asked:

I had my thyroid checked and the results were tsh 1.02 and t4 free .65. rechecked in four weeks. my tsh .66 t4 .66 what does this mean?

A doctor has provided 1 answer

Stable - normal: B"sd the tsh - thyroid stimulating hormone - comes from the pituitary gland and regulates thyroid hormone production. Your values are splendid - Ideal is usually around 1.0. Any test has several sources of variability. one is from the assay - yours are within the accuracy of usual assay on the SAME sample. Also the TSH varies from minute to minute within a certain range in all of us

Answered 2/14/2016

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Should thyroid testing, tsh and free t4 checked randomly or at fasting?

3 doctors weighed in across 2 answers