Why is hypocalcemia easy to occur after patients input a large amount of stored blood?
As an anticoagulant, sodium citrate also has the complexing ability of metal ions. Sodium citrate has a good complexing ability to Ca2+, Mg2+ and other metal ions, such as plasma Fe2+. Therefore, a large amount of stored sodium citrate blood will form a complex with the related metal ions in the recipient's plasma, resulting in a decrease in the corresponding ion concentration.