Dr. Tom Lewis MD and Dr. Chuck Sheppard MD discuss the differences of IV fluids and fluid concentrations. They also discuss case examples and reasons to use specific fluids in certain patients for better outcomes. The variety of fluids including Lactated Ringers, normal saline and now the more reasonable cost of plasmalyte and normasol makes choosing the right fluid for pre-hospital care more complex. Our hope is to clear up some of the confusion.