| Thyroxine.thyroxine binding globulin bound | LP18514-7 | 1 |
| Thyroxine.thyroxine binding globulin bound | Serum or Plasma | Chemistry - non-challenge | LP381522-4 | 1 |
| Tiglylcarnitine (C5:1) | LP66336-6 | 1 |
| Tiglylcarnitine (C5:1) | DBS | Chemistry - non-challenge | LP381662-8 | 1 |
| Tiglylglycine | LP14520-8 | 1 |
| Tiglylglycine | Urine | Chemistry - non-challenge | LP384388-7 | 1 |
| Time hypoglycemic | Interstitial fluid | Chemistry - non-challenge | LP443100-5 | 1 |
| Time above range, high | LP441036-3 | 1 |
| Time above range, high | Interstitial fluid | Chemistry - non-challenge | LP443101-3 | 1 |
| Time above range, very high | LP438476-6 | 1 |
| Time above range, very high | Interstitial fluid | Chemistry - non-challenge | LP443102-1 | 1 |
| Time below range, low | LP441038-9 | 1 |
| Time below range, very low | LP441040-5 | 1 |
| Time below range, very low | Interstitial fluid | Chemistry - non-challenge | LP443098-1 | 1 |
| Time received in laboratory | LP113984-1 | 1 |
| Time received in laboratory | Specimen | Specimen information | LP431274-2 | 1 |
| Time to thrombin peak | LP426523-9 | 1 |
| Time to thrombin peak | Platelet poor plasma | Coagulation | LP427482-7 | 1 |
| Tocopherols | Red Blood Cells | Chemistry - non-challenge | LP385200-3 | 1 |
| Topiramate | LP19239-0 | 1 |
| Topiramate | Serum or Plasma | Drug toxicology | LP390859-9 | 1 |
| Toxic granules | LP17721-9 | 1 |
| Toxic granules | Blood | Hematology and Cell counts | LP393455-3 | 1 |
| traMADol | LP18112-0 | 1 |
| traMADol | Urine | Drug toxicology | LP388631-6 | 1 |
| Transcortin | LP15906-8 | 1 |
| Transcortin | Serum | Chemistry - non-challenge | LP384669-0 | 1 |
| Transferrin receptor.soluble | LP28565-7 | 1 |
| Transferrin receptor.soluble | Serum or Plasma | Chemistry - non-challenge | LP384740-9 | 1 |
| Transthyretin - transthyretin peak 2 | LP418392-9 | 1 |
| Transthyretin - transthyretin peak 2 | Blood | Chemistry - non-challenge | LP418976-9 | 1 |
| Transthyretin | Blood | Chemistry - non-challenge | LP418975-1 | 1 |
| Transthyretin peak 2 | LP418390-3 | 1 |
| Transthyretin peak 2 | Blood | Chemistry - non-challenge | LP418977-7 | 1 |
| Transthyretin width at half peak height | LP418391-1 | 1 |
| Transthyretin width at half peak height | Blood | Chemistry - non-challenge | LP418978-5 | 1 |
| Treponema pallidum | LP14042-3 | 1 |
| Treponema pallidum | XXX | Microbiology | LP376069-3 | 1 |
| Treponema sp | LP21118-2 | 1 |
| Triacylglycerol lipase | Body fluid | Chemistry - non-challenge | LP383257-5 | 1 |
| Triacylglycerol lipase | Serum or Plasma | Chemistry - non-challenge | LP383262-5 | 1 |
| Triamterene crystals | LP32883-8 | 1 |
| Triamterene crystals | Calculus (stone) | Chemistry - non-challenge | LP386725-8 | 1 |
| Trichomonas sp | Genital | Microbiology | LP444634-2 | 1 |
| Trichomonas sp | Urine sediment | Urinalysis | LP402508-8 | 1 |
| Trichomonas vaginalis | Vaginal | Microbiology | LP376932-2 | 1 |
| Trichomonas vaginalis | XXX | Microbiology | LP376933-0 | 1 |
| Tricyclic antidepressants | Serum or Plasma | Drug toxicology | LP391137-9 | 1 |
| Triglyceride | Blood | Chemistry - non-challenge | LP382500-9 | 1 |
| Triglyceride | Body fluid | Chemistry - non-challenge | LP382501-7 | 1 |
| Triglyceride | Serum | Chemistry - non-challenge | LP418622-9 | 1 |
| Triglyceride | Serum or Plasma | Chemistry - non-challenge | LP382509-0 | 1 |
| Triglyceride | Urine | Chemistry - non-challenge | LP382512-4 | 1 |
| Triglyceride in Chylomicrons | LP33183-2 | 1 |
| Triglyceride in Chylomicrons | Serum or Plasma | Chemistry - non-challenge | LP382514-0 | 1 |
| Triglyceride+ester in IDL | LP15915-9 | 1 |
| Triglyceride+ester in IDL | Serum or Plasma | Chemistry - non-challenge | LP382523-1 | 1 |
| Triglyceride+ester in LDL | LP15917-5 | 1 |
| Triglyceride+ester in LDL | Serum or Plasma | Chemistry - non-challenge | LP382524-9 | 1 |
| Triglyceride+ester in VLDL | LP15919-1 | 1 |
| Triglyceride+ester in VLDL | Serum or Plasma | Chemistry - non-challenge | LP382525-6 | 1 |
| Triiodothyronine | Serum or Plasma | Chemistry - non-challenge | LP381527-3 | 1 |
| Triiodothyronine Free | LP29126-7 | 1 |
| Triiodothyronine Free | Serum or Plasma | Chemistry - non-challenge | LP381529-9 | 1 |
| Triiodothyronine resin uptake (T3RU) | LP15921-7 | 1 |
| Triiodothyronine resin uptake (T3RU) | Serum or Plasma | Chemistry - non-challenge | LP381528-1 | 1 |
| Triiodothyronine.reverse | LP15923-3 | 1 |
| Triiodothyronine.reverse | Serum or Plasma | Chemistry - non-challenge | LP381532-3 | 1 |
| Triiodothyronine.true | LP15924-1 | 1 |
| Triiodothyronine.true | Serum or Plasma | Chemistry - non-challenge | LP381531-5 | 1 |
| Trimethyllysine | Cerebral spinal fluid | Chemistry - non-challenge | LP384129-5 | 1 |
| Trimethyllysine | DBS | Chemistry - non-challenge | LP384128-7 | 1 |
| Trimethyllysine | Serum or Plasma | Chemistry - non-challenge | LP384130-3 | 1 |
| Triosephosphate isomerase | LP15043-0 | 1 |
| Triosephosphate isomerase | Red Blood Cells | Chemistry - non-challenge | LP383265-8 | 1 |
| Tripeptidyl peptidase I | DBS | Chemistry - non-challenge | LP383268-2 | 1 |
| Tripeptidyl peptidase I | Fibroblast | Chemistry - non-challenge | LP383269-0 | 1 |
| Tripeptidyl peptidase I | White blood cells | Chemistry - non-challenge | LP383270-8 | 1 |
| Triple phosphate | LP99331-8 | 1 |
| Triple phosphate | Urine | Chemistry - non-challenge | LP386726-6 | 1 |
| Trisomy 21 risk based on maternal age+Alpha-1-Fetoprotein+Choriogonadotropin+Estriol.unconjugated | LP57632-9 | 1 |
| Trisomy 21 risk based on maternal age+Alpha-1-Fetoprotein+Choriogonadotropin+Estriol.unconjugated | Fetus | Chemistry - non-challenge | LP386694-6 | 1 |
| Trisomy 21 risk based on maternal age+Pregnancy associated plasma protein A+Choriogonadotropin+Nuchal translucency | LP63615-6 | 1 |
| Trisomy 21 risk based on maternal age+Pregnancy associated plasma protein A+Choriogonadotropin+Nuchal translucency | Fetus | Chemistry - non-challenge | LP386696-1 | 1 |
| Troponin I.cardiac | Blood | Chemistry - non-challenge | LP385941-2 | 1 |
| Troponin T. cardiac 2 Hr 5th generation | LP436424-8 | 1 |
| Troponin T. cardiac 2 Hr 5th generation | Serum or Plasma | Chemistry - non-challenge | LP436951-0 | 1 |
| Trypsin+Trypsinogen | LP15928-2 | 1 |
| Trypsinogen | LP15929-0 | 1 |
| Trypsinogen I Free | LP29128-3 | 1 |
| Trypsinogen I Free | DBS | Chemistry - non-challenge | LP386774-6 | 1 |
| Tryptase | LP17650-0 | 1 |
| Tryptase | Serum or Plasma | Chemistry - non-challenge | LP383272-4 | 1 |
| Tryptophan | Amniotic fluid | Chemistry - non-challenge | LP384390-3 | 1 |
| Tryptophan | Cerebral spinal fluid | Chemistry - non-challenge | LP384393-7 | 1 |
| Tryptophan | DBS | Chemistry - non-challenge | LP384391-1 | 1 |
| Tryptophan | Platelet rich plasma | Chemistry - non-challenge | LP384394-5 | 1 |
| Tryptophan | Serum or Plasma | Chemistry - non-challenge | LP384396-0 | 1 |
| Tube number | LP19420-6 | 1 |
| Tube number | Cerebral spinal fluid | Specimen information | LP404303-2 | 1 |