<prompt> The highest concentration of potassium is in:PlasmaIsotonic salineRinger lactateDarrows solution  <response>: Ans. d Darrows solutionHighest potassium concentration is seen in Darrow solution. Composition NaKCl-CaLactateGlucoseCaloriesIV fluid 5.41121.827--RingerslactateHartmanns130-154---Normal saline 0.9 NaCl154-154---10 glucose---1004000.45 NaCl5 glucose77-77--50200Darrowssolution12135103-53-- 