Bushinsky D A, Coe F L
Nephron. 1985;40(1):38-40. doi: 10.1159/000183424.
The relationship between acid base parameters and serum potassium concentration was studied in controls and in patients during acute ammonium chloride-induced metabolic acidosis. Serum potassium was best correlated with serum bicarbonate during control (r = -0.323; p less than 0.01) and acidosis (r = -0.437; p less than 0.001). The slopes and intercepts were similar in both instances and the combined correlation was highly significant (r = -0.493; p less than 0.001). Examination of the 95% joint confidence region revealed that during acidosis serum potassium was rarely above 5.0 mEq/l when serum bicarbonate was greater than 16 mEq/l. It is probably not sound clinical practice to ascribe hyperkalemia to acute mild metabolic acidosis.
在对照组以及急性氯化铵诱发的代谢性酸中毒患者中,研究了酸碱参数与血清钾浓度之间的关系。在对照期间(r = -0.323;p < 0.01)以及酸中毒期间(r = -0.437;p < 0.001),血清钾与血清碳酸氢盐的相关性最佳。两种情况下的斜率和截距相似,联合相关性高度显著(r = -0.493;p < 0.001)。对95%联合置信区间的检查显示,在酸中毒期间,当血清碳酸氢盐大于16 mEq/l时,血清钾很少高于5.0 mEq/l。将高钾血症归因于急性轻度代谢性酸中毒可能并非合理的临床做法。