What is normal saline used for in crash cart?

Normal saline, a sterile solution of 0.9% sodium chloride, is commonly used in crash carts for various emergency situations. It serves as a fluid replacement to maintain blood volume during resuscitation efforts, particularly in cases of shock or dehydration. Additionally, normal saline can be used to dilute medications for intravenous administration and to flush intravenous lines to ensure patency. Its versatility makes it an essential component in emergency medical care.