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Table 1 Electrolyte composition of studied fluids.

From: Balanced versus chloride-rich solutions for fluid resuscitation in brain-injured patients: a randomised double-blind pilot study

  Saline group Balanced group
Crystalloid solutions 0.9% saline solution Isofundine
Sodium (mmol/L) 153 140
Potassium (mmol/L) 0 4.0
Calcium (mmol/L) 0 2.5
Magnesium (mmol/L) 0 1.0
Chloride mmol/L) 153 127
Acetate (mmol/L) 0 24
Malate (mmol/L) 0 5.0
pH 4 to 7 4.6 to 5.4
Theoretical osmolarity (mOsmol/L) 306 304
Acid titre <2 <2
Hydroxyethyl starch solutions HEAfusine Tetraspan
Poly(O-2-hydroxyethyl) starch (g/L) 60 60
Molar substitution 0.5 0.42
Average molecular weight (Da) 200,000 130,000
Sodium (mmol/L) 153 140
Potassium (mmol/L) 0 4.0
Calcium (mmol/L) 0 2.5
Magnesium (mmol/L) 0 1.0
Chloride (mmol/L) 153 118
Acetate (mmol/L) 0 24
Malate (mmol/L) 0 5.0
pH 4 to 7 5.6 to 6.4
Theoretical osmolarity (mOsmol/L) 310 296
Acid titre <2 <2