Trans-tubular potassium gradient (T.T.K.G) in hypokalemia is?: (A) <3-4, (B) >6-7, (C) >9-10, (D) >10-15
Answer is A. The expected values of the Trans-tubular potassium gradient (T.T.K.G) are <3-4 in the presence of hypokalemia and >6-7 in the presence of hyperkalemia. TTKG is measured as follows: