NREMT Advanced EMT Practice Test #4

Answer - C - In a crisis, the body will pull fluids from the interstitial and intracellular spaces. These spaces represent 88% of the body’s total fluid volume. In a crisis, the body can draw on the is reservoir by closing the precapillary sphincters, drawing fluid from the interstitial spaces and cells into the capillary bed, and returning this fluid to the general circulation through the opened postcapillary venule.