What is the equation for trans-tubular potassium gradient (TKKG)?

Updated: Apr 09, 2020
  • Author: Eleanor Lederer, MD, FASN; Chief Editor: Vecihi Batuman, MD, FASN  more...
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The TTKG is determined by the following equation:

TTKG = (urine K x serum osmolarity)

(serum K x urine osmolarity)

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