“…In DKA the overall mean corrected [Na] was within the normal range of [Na] (137–143 mmol/L). Among DKA series with ≥10 cases, mean corrected [Na] was in the eunatremic range in 45 series ( 66 – 69 , 71 , 74 , 75 , 80 , 83 , 84 , 90 , 91 , 93 , 104 – 106 , 108 , 109 , 112 , 113 , 118 , 120 , 122 , 125 – 127 , 129 , 135 , 137 , 138 , 140 , 143 – 146 , 151 , 155 , 156 , 158 , 160 , 163 – 165 , 168 – 171 ) reporting 6,355 episodes, including the pivotal PECARN study in which mean corrected [Na] was 140.8 mmol/L in one study group and 140.7 mmol/L in each of the other three study groups ( 163 ); and in the hypernatremic range in the remaining 18 series ( 74 , 76 , 78 , 80 , 85 , 91 , 93 , 98 , 100 – 102 , 104 , 116 , 120 , 129 , 133 , 139 , 169 ) reporting 1,301 episodes. Thus, although many patients have water deficits in excess of sodium and potassium deficits, an equal or even larger number of patients do not have excessive water deficits at presentation with DKA.…”