| PTA | parallel tubular arrays; parathyroid adenoma; percutaneous transluminal angioplasty; peroxidase-labe... |
|---|---|
| PTC | papillary thyroid carcinoma; percutaneous transhepatic cholangiography; phase transfer catalyst; phe... |
| PTF | patient treatment file; plasma thromboplastin factor; posterior talofibular [ligament]; proximal tub... |
| PTH | parathormone; parathyroid; parathyroid hormone; percutaneous transhepatic drainage; phenylthiohydant... |
| PTT | partial thromboplastin time; particle transport time; posterior tibial tendon (transfer); prothrombi... |
| international cooperation | The interaction of persons or groups of persons representing various nations in the pursuit of a common goal or interest. (12 Dec 1998) |
|---|---|
| international council of nurses | An international professional organization composed of one association per country for the purpose of improving and developing nursing's contribution to the promotion of health and care of the sick. (12 Dec 1998) |
| international educational exchange | The exchange of students or professional personnel between countries done under the auspices of an organization for the purpose of further education. (12 Dec 1998) |
| International Labour Organization Classification | ILO 1980 International Classification of Radiographs of the Pneumoconioses; a system for qualitative and semiquantitative description of the chest radiographic findings caused by pneumoconiosis, designed for epidemiologic studies; supersedes classifications of 1950, 1958, 1968, and 1971. (05 Mar 2000) |
| international normalised ratio | System established by the world health organization and the international committee on thrombosis and haemostasis for monitoring and reporting blood coagulation tests. Under this system, results are standardised using the international sensitivity index for the particular test reagent/instrument combination used. (12 Dec 1998) |
| international system of units | A system of physical units in which the fundamental quantities are length, time, mass, electric current, temperature, luminous intensity, and amount of substance, and the corresponding units are the meter, second, kilogram, ampere, kelvin, candela, and mole. The system has been given official status and recommended for universal use by the general conference on weights and measures. (12 Dec 1998) |
| international unit | The amount of a substance, such as a drug, hormone, vitamin, enzyme, etc., that produces a specific effect as defined by an international body and accepted internationally; e.g., for an enzyme it is umole of product formed (or substrate consumed) per minute. Synonym: unit. (05 Mar 2000) |
| Leiter International Performance Scale | A nonverbal (performance) test for measuring intelligence which contains norms for each age between 2 and 18; originally developed as a method of assessing the comparative intellectual abilities of Caucasian, Chinese, and Japanese children, but now occasionally used for assessing slow learners and those who are blind, deaf, or verbally handicapped. (05 Mar 2000) |