| TAPS | Thick As Pig Sh*t | - | NASA |
| TARFU | Things Are Really F*cked Up | - | NASA |
| TATT | Talks All The Time (also "Tired All The Time") | - | NASA |
| TBC | Total Body Crunch: Multiple Injuries | - | NASA |
| TBD | Total Body Dolor I.e. Complains Of Pain Everywhere | - | NASA |
| TBP | Total Body Pain | - | NASA |
| TCLT | Transcranial Lead Therapy - Gunshot Wound Passing Through Head | - | NASA |
| TCS | Toxic Confusional State - Confused, Usually Elderly, Person Whose Problem Is Due To Constipation (toxic Build Up In Body) | - | NASA |
| TDS | Terminal Deceleration Syndrome (e.g. RTA Death, High-rise Syndrome, Jump-suicides And Parachute-failed-to-open) | - | NASA |
| TEC | Transfer To Eternal Care I.e. Dead | - | NASA |
| TEETH | Tried Everything Else, Try Homeopathy | - | NASA |
| TF BUNDY | Totally F*cked, But Unfortunately Not Dead Yet | - | NASA |
| TFO | Too F*cking Old (person Dying Of Old Age). | - | NASA |
| TFTB | Too Fat To Breathe | - | NASA |
| THC | Three Hots And A Cot; Sought In A&E By The Local Homeless | - | NASA |
| TLC | Tube, Lavage & Charcoal (given To Poisoning Victim) | - | NASA |
| TLGP | Two Legged Guinea Pig - Patient Undergoing Experimental Or Extreme Treatments | - | NASA |
| TLR | Two Legged Rat - Refers To A Patient Undergoing Experimental Or Extreme Treatments | - | NASA |
| TMB | Too Many Birthdays: Person Dying Of "old Age" | - | NASA |
| TMI | Three Meaningless Initials (e.g. John Smith, TMI - Applied To Medics With Qualifications Rather Than Ability) | - | NASA |
| TOBP | Tired Of Being Pregnant (especially Patient Demanding Caesarian) | - | NASA |
| TOG | Tears Of Gratitude | - | NASA |
| TOI | Trans-occipital Implants - Bullet Wound To The Head | - | NASA |
| TRO | Time Ran Out | - | NASA |
| TSL | Too Stupid To Live | - | NASA |
| TSS | Toxic Sock Syndrome (often Related To The Homeless) | - | NASA |
| TTFO | Told To F*ck Off | - | NASA |
| TTJ | Transfer To Jesus | - | NASA |
| TTOAST | Take Them Out And Shoot Them | - | NASA |
| TTR | (US) Tattoo-to-Tooth Ratio (Dirtbag Ratio) | - | NASA |
| TTTR | Tooth To Tattoo Ratio - Visual Determination Of Basic Intelligence. A Positive Ratio (more Teeth Then Tattoos) Is Generally Better Than A Negative Ratio, Which Is Bad. | - | NASA |
| TUBE | Totally Unnecessary Breast Examination (might Happen To A GLM / MILF) | - | NASA |
| TVTP | Tried Vancomycin, Try Prayer (Vancomycin Is Anti-MRSA Drug) | - | NASA |
| TWA | Third World Assassins. Slang For The Allegedly Poor Medical Care Delivered By Physicians Who Went To Medical School In Foreign Countries | - | NASA |
| TWSAM | Trash Will Survive And Multiply | - | NASA |
| TYFTIC | Thank You For This Interesting Consult - This Is Complete B*llsh*t | - | NASA |
