The History of IV Fluids

The human body is about 60% water. It varies by age, so a neonate is about 80%. An adult males, about 60%; an adult female, about 50%. And old people, both male and female, are about 50%. If you take that out, then what you're left with is the portion of the body water that can talk to other substances. That's where we get the ICF, the intracellular fluid 2 to 1 ratio to the extracellular fluid. The ECF or non-sequestred extravascular fluid (NECF) stays much more in contact with normal saline intravascular fluids than it does with NECF. This