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tubular maximum |
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tubular maximum. See transport maximum. maximum [mak´sĭ-mum] the greatest quantity, effect, or value possible or achieved under given circumstances. adj., adj max´imal. transport maximum (tubular maximum) Tm , the highest rate in milligrams per minute at which the renal tubules can transfer a substance either from the tubular luminal fluid to the interstitial fluid or from the interstitial fluid to the tubular luminal fluid, beyond which it may be excreted in the urine. In kidney function tests, it is expressed as Tm with inferior letters representing the substance used in the test, such as TmPAH (transport maximum for p-aminohippuric acid).
maximum the greatest quantity, effect or value possible or achieved under given circumstances. maximum permissible dose see dose equivalent limits. tubular maximum the highest rate in milligrams per minute at which the renal tubules can transfer artificially administered test substances; the maximal tubular excretory capacity. Abbreviated Tm. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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