TSH stands for thyroid-stimulating1 hormone. A TSH test is a blood test that measures this hormone. The thyroid is a small, butterfly-shaped gland located near your throat.
Why Get Tested?
TSH levels that are too high or too low can indicate your thyroid isn’t working correctly.
How Is It Done?
A blood sample is drawn from a vein in arm or fingerstick. For newborns, a sample is taken from a heel stick or umbilical cord.
Any Preparation Needed?