| TA | alkaline tuberculin; arterial tension; axillary temperature; tactile afferent; Takayasu arteritis; t... |
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| TAC | tachykinin; terminal antrum contraction; tetracaine, adrenalin, and cocaine; time-activity curve; to... |
| TAH | total abdominal hysterectomy; total artificial heart |
| TAN | total adenine nucleotide; total ammonia nitrogen |
| TBC | thyroxine-binding coagulin; total body calcium; total body clearance; tuberculosis |
| total parenteral nutrition | <pharmacology> Intravenous feeding that provides patients with all essential nutrients when they are unable to feed themselves. Acronym: TPN (12 Jan 1998) |
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| total pelvic exenteration | Removal of the urinary bladder, lower parts of the ureter, vagina, uterus, adnexa, rectum, anus, and adjacent lymph nodes; a colostomy and urinary diversion are necessary. Synonym: Brunschwig's operation. (05 Mar 2000) |
| total placenta previa | Placenta previa in which the placenta entirely covers the internal os of the cervix. Synonym: central placenta previa, total placenta previa. (05 Mar 2000) |
| total push therapy | The application of all available therapy's to the treatment of a psychiatric patient in a hospital setting. (05 Mar 2000) |
| total quality management | The application of industrial management practice to systematically maintain and improve organization-wide performance. Effectiveness and success are determined and assessed by quantitative quality measures. (12 Dec 1998) |
| total refractory period | The absolute refractory period plus the relative refractory period. (05 Mar 2000) |
| total sclerectasia | Uniform stretching of the entire sclera, typically seen in buphthalmos. (05 Mar 2000) |
| total spinal anaesthesia | Spinal anaesthesia extensive enough to produce loss of sensation in all extracranial sensory roots. (05 Mar 2000) |
| total suspended particulates | The quantity of solid particles in a gas or exhaust stream. Any finely divided material (solid or liquid) that is airborne with a diameter smaller than a few hundred micrometres. (05 Dec 1998) |
| total suspended solids | The organic and inorganic material left on a standard glass fibre filter (0.45 micron) after a water sample is filtered through it. (09 Oct 1997) |
| total synechia | Adhesion of the entire surface of the iris to the lens capsule. (05 Mar 2000) |
| total transfusion | Removal of most of a patient's blood followed by introduction of an equal amount from donors. Synonym: exsanguination transfusion, substitution transfusion, total transfusion. (05 Mar 2000) |