| Thyroglobulin |
| Toxocara Ab (IgG) |
| Trypsine activity (stool) |
| Temgesic (drug abuse) |
| Teophyline (drug abuse) |
| Thiethylprazine (drug abuse) |
| Thioridazine (drug abuse) |
| Trolamine (drug abuse) |
| Tranylcypromine (drug abuse) |
| Trazodone (drug abuse) |
| Tremadol (drug abuse) |
| Trifluoperazine(drug abuse) |
| Trimipramine (drug abuse) |
| T3 |
| T3 up |
| T4 |
| Tacrolimus |
| Testosterone |
| Tetanus Ab (IgG) |
| Throat Culture |
| Thyroid Microsomal Ab |
| Thyroid peroxidase (TPO Ab) |
| Thyroxine binding globuline (TBG) |
| TIBC |
| Tissue pathology |
| Topamax (Topiramate) |
| Total lipid |
| Toxicology |
| Toxoplasma Ab (IgG) |
| Toxoplasma Ab (IgM) |
| Toxoplasma PCR |
| Transferrin |
| Transferrin saturation |
| Triglycerides |
| Troponine l |
| TSH |
| TTG Ab(IgA) |
| TTG Ab(IgG) |
| Tyrosine |
