| COR | cardiac output recorder; comprehensive outpatient rehabilitation; conditioned orientation reflex; co... |
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| CR | calculation rate; calculus removed; calorie-restricted; cardiac rehabilitation; cardiac resuscitatio... |
| CRD | carbohydrate-recognition domain; chronic renal disease; chronic respiratory disease; child restraint... |
| CRI | Cardiac Risk Index; catheter-related infection; chronic renal insufficiency; chronic respiratory ins... |
| CSF-WR | cerebrospinal fluid-Wassermann reaction |
| Treponema pallidum immobilization reaction | A test for syphilis in which an antibody other than Wassermann antibody is present in the serum of a syphilitic patient, which in the presence of complement causes the immobilization of actively motile Treponema pallidum obtained from testes of a rabbit infected with syphilis. Synonym: TPI test, Treponema pallidum immobilization reaction. (05 Mar 2000) |
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| eosinopenic reaction | Reduction in the numbers of circulating eosinophils by ACTH or by adrenal corticoids. (05 Mar 2000) |
| triketohydrindene reaction | <technique> A technique for detecting amino acids and proteins by heating a material with ninhydrin, if amino molecules are present, there is a colour reaction. (09 Oct 1997) |
| erythrophore reaction | A reddish colouration (nuptial colouration) caused in certain male fishes (bitterling) by the injection of the gonad hormone. Synonym: fish test. (05 Mar 2000) |
| escape reaction | Innate response elicited by sensory stimuli associated with a threatening situation, or actual confrontation with an enemy. (12 Dec 1998) |
| etard reaction | <biochemistry> In organic chemistry, this involves oxidizing methylated homologs of benzene into aromatic aldehydes. The reaction uses chromyl chloride. (09 Oct 1997) |
| Jaffe reaction | A bright orange-red complex resulting from the treatment of creatinine with alkaline picrate solution; the basis of most routine creatinine tests. (05 Mar 2000) |
| Jarisch-Herxheimer reaction | An inflammatory reaction in syphilitic tissues (skin, mucous membrane, nervous system, or viscera) induced in certain cases by specific treatment with Salvarsan, mercury, or antibiotics; believed to be due to a rapid release of treponemal antigen with an associated allergic reaction in the patient. Synonym: Jarisch-Herxheimer reaction. (05 Mar 2000) |
| Jolly's reaction | Rapid loss of response to faradic stimulation of a muscle with the galvanic response and the power of voluntary contraction retained. Synonym: myasthenic reaction. (05 Mar 2000) |
| type III hypersensitivity reaction | An immunologic category of diseases evoked by the deposition of antigen-antibody or antigen-antibody-complement complexes on cell surfaces, with subsequent involvement of breakdown products of complement, platelets, and polymorphonuclear leukocytes, and development of vasculitis; nephritis is common. Arthus phenomenon and serum sickness are classic examples, but many other disorders, including most of the connective tissue disease's, may belong in this immunologic category; immune complex disease's can also occur during a variety of disease's of known aetiology, such as subacute bacterial endocarditis. See: autoimmune disease. Synonym: immune complex disorder, type III hypersensitivity reaction. (05 Mar 2000) |
| eye-closure pupil reaction | A constriction of both pupils when an effort is made to close eyelids forcibly held apart. A variant of the pupil response to near vision. Synonym: Galassi's pupillary phenomenon, Gifford's reflex, lid-closure reaction, orbicularis phenomenon, orbicularis pupillary reflex, Piltz sign, Westphal's pupillary reflex, Westphal-Piltz phenomenon. (05 Mar 2000) |
| false-negative reaction | <statistics> An erroneous or mistakenly negative response. Negative test results in subjects who possess the attribute for which the test is conducted. The labeling of diseased persons as healthy when screening in the detection of disease. (05 Mar 2000) |
| false-positive reaction | <statistics> An erroneous or mistakenly positive response. Positive test results in subjects who do not possess the attribute for which the test is conducted. The labeling of healthy persons as diseased when screening in the detection of disease. (05 Mar 2000) |
| Yorke's autolytic reaction | A test for paroxysmal haemoglobinuria; serum is placed in an ice chest and kept at 0캜 for 5 to 7 minutes, then in an incubator at 37캜 with erythrocytes for 1 hour, at which time, if the reaction is positive, haemolysis occurs; if the serum is kept at 1캜 for an hour and then placed in the incubator with erythrocytes there is little haemolysis. (05 Mar 2000) |
| zero-order reaction | A reaction that proceeds at a particular rate independently of the concentration of the reactant or reactants. (05 Mar 2000) |