A false reaction; one not due to specific causes in a given test.

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pseu·do·re·ac·tion -rē-'ak-shən n a reaction following the injection of a toxin (as in the Schick test) which is caused by something (as impurities in the test medium) other than the toxin itself

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pseu·do·re·ac·tion (soo″do-re-akґshən) a false or deceptive reaction; in intradermal tests, a skin reaction due not to the specific protein used in the test but to the protein of the medium used to produce the toxin.

Medical dictionary. 2011.

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  • pseudoreaction — n. false reaction, false response …   English contemporary dictionary

  • test — 1. To prove; to try a substance; to determine the chemical nature of a substance by means of reagents. 2. A method of examination, as to determine the presence or absence of a definite disease or of some substance in any of the fluids, tissues,… …   Medical dictionary

  • Schick test — shik n a serological test for susceptibility to diphtheria by cutaneous injection of a diluted diphtheria toxin that causes an area of reddening and induration in susceptible individuals Schick Béla (1877 1967) American pediatrician. In 1913… …   Medical dictionary

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