To prepare prepare 4 liters of Ringer solution (6.5g of NaCl, 0.14g of KCl, 0.15g of CaCl₂2H₂O, 0.2G OF NaHCO₃ per liter.:

- put 26g of NaCl, 0.56g of KCl, 0.6g of CaCl₂2H₂O, and 0.8g of NaHCO₃in a 4 liters vial
- then, fill the vial with water to the 4 liter mark and shake.