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Clinical chemistry reagents used to determine several components in a sample of urine in a short period of time, typically several minutes (i.e., rapid tests). These reagents may be impregnated in one or more areas of a paper strip (reagent strip) that undergo a color change when reacted with specific substances. Urinary rapid-test multianalyte reagents are mostly used for simultaneous determination of two or more of the most important clinical substances in urine (e.g., protein, albumin, glucose, ketone bodies, occult blood, bilirubin, urobilinogen).
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