| T4(C) | serum thyroxine measured by column chromatography |
|---|---|
| T4(D) | serum thyroxine measured by displacement analysis |
| TET | tetracycline; total ejection time; total exchange thyroxine; treadmill exercise test |
| TF | free thyroxine; tactile fremitus; tail flick [reflex]; temperature factor; testicular feminization; ... |
| T4N | normal serum thyroxine |