| ILS | idiopathic leucine sensitivity; idiopathic lymphadenopathy syndrome; increase in life span; infrared... |
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| IS | ileal segment; immediate sensitivity; immune serum; immunosuppression; impingement syndrome; incenti... |
| IST | inappropriate sinus tachycardia; insulin sensitivity test; insulin shock therapy; International Soci... |
| LS | lateral suspensor; left sacrum; left septum; left side; legally separated; leiomyosarcoma; length of... |
| MC & S | microscopy, culture, and sensitivity |
| diagnostic sensitivity | The probability (P) that, given the presence of disease (D), an abnormal test result (T) indicates the presence of disease; i.e., P(T/D). See: clinical sensitivity. (05 Mar 2000) |
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| disk sensitivity method | A procedure for testing the relative effectiveness of various antibiotics; small disks of paper (or other suitable material) are impregnated with known, appropriate amounts of antibiotic, and then placed on the surface of semisolid medium that has been previously inoculated with the organism being tested; after suitable periods of incubation at 37캜, the lack of growth in zones about the various disks indicates the relative effectiveness of the antibiotic. (05 Mar 2000) |
| DNAse i sensitivity | <molecular biology> The likelihood that a particular DNA segment will be attacked by the endonuclease enzyme DNase I, which breaks down DNA into smaller fragments by cleaving its phosphodiester bonds. DNA segments which contain active genes that are regularly transcribed are more prone to being cut apart by DNase I than inactivated genes, because the inactivated genes are generally within condensed regions of the chromosome, while the active genes are in more open configurations for easy access for transcription. (09 Oct 1997) |
| idiosyncratic sensitivity | A type I allergic reaction (atopic). (05 Mar 2000) |
| induced sensitivity | 1. <immunology> A state of hypersensitivity induced by exposure to a particular antigen (allergen) resulting in harmful immunologic reactions on subsequent exposures, the term is usually used to refer to hypersensitivity to an environmental antigen (atopic allergy or contact dermatitis) or to drug allergy. The original meaning, now obsolete, included all states of altered immunologic reactivity, immunity as well as hypersensitivity. Gell and Coombs used the term allergic reaction to mean any harmful immunologic reaction causing tissue injury. 2. <study> The medical specialty dealing with diagnosis and treatment of allergic disorders. (18 Nov 1997) |
| oligomycin sensitivity conferral protein | <protein> The _ subunit of the ATP synthase, believed to link the F1 catalytic segment to the F0 proton conduction segment. Binds the toxin oligomycin. (18 Nov 1997) |
| acoustic impedance tests | Objective tests of middle ear function based on the difficulty (impedance) or ease (admittance) of sound flow through the middle ear. These include static impedance and dynamic impedance (i.e., tympanometry and impedance tests in conjunction with intra-aural muscle reflex elicitation). This term is used also for various components of impedance and admittance (e.g., compliance, conductance, reactance, resistance, susceptance). (12 Dec 1998) |
| Alpha tests | A set of paper and pencil-administered mental tests first used in the United States Army in 1917-1918 to determine the mental ability of literate recruits; the set includes 8 different types of tests: i.e., directions, arithmetical problems, practical judgement, synonyms and antonyms, disarrayed sentences, number series completions, analogies, and information; they are designed especially for testing large groups of individuals simultaneously, and for rapid machine scoring; distinguished from the Army Beta tests, a complementary set for administration to recruits who could not read or write English, in which the instructions are given in signs and the test material is pictorial. See: Beta tests. Synonym: Army Alpha tests. (05 Mar 2000) |
| aptitude tests | Primarily non-verbal tests designed to predict an individual's future learning ability or performance. (12 Dec 1998) |
| Beta tests | <psychiatry> A set of pictorially administered mental tests first used in the United States Army in 1917-1918 to determine the relative mental ability of recruits who were illiterate or deficient in reading and writing English, the instructions being given in signs and the test material's pictorial in characters; distinguished from the Army Alpha tests, which were administered at the same time to literate recruits. Synonym: Army Beta tests. (05 Mar 2000) |
| blood coagulation tests | Laboratory tests for evaluating the individual's clotting mechanism. (12 Dec 1998) |
| breath tests | Any tests done on exhaled air. (12 Dec 1998) |
| bronchial provocation tests | Tests involving inhalation of allergens (nebulised or in dust form), nebulised pharmacologically active solutions (e.g., histamine, methacholine), or control solutions, followed by assessment of respiratory function. These tests are used in the diagnosis of asthma. (12 Dec 1998) |
| caloric tests | Elicitation of a rotatory nystagmus by stimulating the saemicircular canals with water or air which is above or below body temperature. In warm caloric stimulation a rotatory nystagmus is developed toward the side of the stimulated ear; in cold, away from the stimulated side. Absence of nystagmus indicates the labyrinth is not functioning. (12 Dec 1998) |
| carcinogenicity tests | Tests to experimentally measure the tumour-producing/cancer cell-producing potency of an agent by administering the agent (e.g., benzanthracenes) and observing the quantity of tumours or the cell transformation developed over a given period of time. The carcinogenicity value is usually measured as milligrams of agent administered per tumour developed. Though this test differs from the DNA-repair and bacterial microsome mutagenicity tests, researchers often attempt to correlate the finding of carcinogenicity values and mutagenicity values. (12 Dec 1998) |