A patient with end-stage renal disease developed severe hyperchloremic acidosis (venous serum total CO2 level of 10 mmol/L) after treatment with 16 L of isotonic saline. Analysis of this case and published literature indicates that dilutional acidosis may result when very large volumes of isotonic saline are administered intravenously, especially in patients with impaired or absent renal function.
GarellaS., TzamaloukasA.H., ChazanJ.A.. Effect of isotonic volume expansion on extracellular bicarbonate stores in normal dogs.Am J Physiol1973; 225: 628–36.
4.
RosenbaumB.J., MakoffD.L., MaxwellM.H.. Acid-base and electrolyte changes induced by acute isotonic saline infusion in the nephrectomized dog.J Lab Clin Med1969; 74: 427–35.
5.
JaberB.L., MadiasN.E.. Marked dilutional acidosis complicating management of right ventricular myocardial infarction.Am J Kidney Dis1997; 30: 561–7.
6.
MathesD.D., MorellR.C., RohrM.S.. Dilutional acidosis- is it a real clinical entity?Anesthesiology1997; 86: 501–3.
7.
GoodkinD.A., RajaR.A., SavenA.. Dilutional acidosis.South Med J1990; 83: 354–5.