Many people suffer from sluggishness and fatigue. Now, there is a simple method to determine if these symptoms are caused by hypothyroidism, or underactive thyroid.
ThyroChek® TSH test is a rapid screening test that provides your patients and practice with the most efficient care available.
Developed by doctors, this innovative device tests whole blood for elevated thyroid stimulating hormone (TSH), the first clinical indicator of hypothyroidism.

Ordering a TSH test alone initially, followed by the T4 in only cases of abnormal TSH will significantly decrease unnecessary testing and expense.
Thyroid Function Testing in Outpatients: Are both sensitive TSH and T4 Necessary?
Dr. Anthony J. Viera, Family Medicine, June 2003