TSH is usually enough | Parkhurst Exchange

TSH is usually enough

January 2010

Is blood TSH level adequate to detect hypo- or hyperthyroidism, or is T3/T4 needed? ROSHAN DHEDA, MD, Bradford, ON

Yes, TSH (thyroid-stimulating hormone) is the screening test of choice to detect hyper- or hypothyroidism. A T3/T4 may be ordered if TSH is mildly elevated or suppressed, to determine if the patient has subclinical hyper- or hypothyroidism.

Janine Malcolm, MD

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