TSH With Free T4
TSH with free T4 (sometimes reflexed only when TSH is abnormal).
2 tests explainedAlso printed as TSH and Free T4, TSH w/ Reflex to FT4, TSH + FT4, Thyroid ScreenLOINC 24348-5
Check your whole panel
Type the results from your report. Each one is placed on its usual range, with its status in words.
Type the results from your TSH With Free T4 report. Each one is placed on its usual range as you type.
Nothing you type here leaves your browser. Ranges differ a little between labs, so the range on your own report is the one your result is judged against.
The 2 tests in this panel
What each one measures and the range labs usually print for adults. Ranges differ a little between labs, so the range on your own report is the one your result is judged against.
TSH (Thyroid Stimulating Hormone)
A hormone from the pituitary gland that tells your thyroid how much hormone to make. It is the test most often ordered first to check your thyroid.
- 11+
- 0.45–4.5 mIU/L
Free T4 (Free Thyroxine)
The unattached, ready-to-use part of thyroxine (T4), the main hormone your thyroid makes. It shows how much thyroid hormone is available to your body.
- 20+
- 0.82–1.77 ng/dL