| (A-a)DN2 | alveolo-arterial nitrogen tension difference |
|---|---|
| AADO2, (a-A) DO2 | arterio-alveolar oxygen tension difference |
| AaPCO2, (A-a)PCO2 | alveolo-arterial carbon dioxide tension difference |
| AaPO2, (A-a) PO2 | alveolo-arterial oxygen tension difference |
| AID | acquired immunodeficiency disease; acute infectious disease; acute ionization detector; Agency for I... |
| total facial index | Length is measured from the nasion to the mental tubercle: (nasimental length × 100)/bizygomatic width. (05 Mar 2000) |
|---|---|
| total fertility rate | <epidemiology> The number of children an average women would have assuming that she lives her full reproductive lifetime. (05 Dec 1998) |
| total haematuria | Uniform mixing of blood in the entire voided urine, commonly indicating an upper or mid-urinary tract source of bleeding. (05 Mar 2000) |
| total hyperopia | That which can be determined after complete paralysis of accommodation by means of a cycloplegic. (05 Mar 2000) |
| total hysterectomy | Complete surgical removal of the uterus and cervix. Also called a complete hysterectomy. (12 Dec 1998) |
| total iron binding capacity | <biochemistry, haematology> A test that measures indirectly the transferrin level in the bloodstream. Transferrin is a protein that carries iron in the body. Normal values are 240 to 450 mcg/dl. This test is used to evaluate anaemia. Greater than normal total iron binding capacity can be seen in: iron deficiency anaemia, late pregnancy and polycythaemia vera. Lower than normal total iron binding capacity can be seen in cirrhosis, sickle cell anaemia, hypoproteinaemia, pernicious anaemia and haemolytic anaemia. The use of birth control pills can lead to increased total iron binding capacity measurements. Acronym: TIBC (12 Jan 1998) |
| total joint arthroplasty | Arthroplasty in which both joint surfaces are replaced with artificial materials, usually metal and high-density plastic. (05 Mar 2000) |
| total keratoplasty | Corneal transplant in which the entire cornea is removed and replaced. (05 Mar 2000) |
| total knee joint replacement | Surgery involving the replacement of the knee joint with artificial components which reestablishes normal joint function. Indicated in cases of severe knee fracture or degenerative arthritis (DJD) unresponsive to medical therapy. (27 Sep 1997) |
| total lung capacity | The volume of air contained in the lungs at the end of a maximal inspiration. It is the equivalent to each of the following sums: vital capacity plus residual volume; inspiratory capacity plus functional residual capacity; tidal volume plus inspiratory reserve volume plus functional residual capacity; tidal volume plus inspiratory reserve volume plus expiratory reserve volume plus residual volume. (12 Dec 1998) |
| total mastectomy | Excision of the breast including the nipple, areola, and most of the overlying skin. Synonym: total mastectomy. (05 Mar 2000) |
| total necrosis | Complete necrosis of the cytologic and histologic elements in a portion of tissue, as in caseous necrosis, death of an entire organ or part. (05 Mar 2000) |
| total or partial anomalous pulmonary venous connections | Connections in which some or all of the pulmonary veins connect to the right atrium or one of its tributaries. (05 Mar 2000) |
| 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) |
| 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) |