Final answer:
The discharge of the regulator vent for an underground container must be above a certain height to ensure sufficient pressure of the fluid being administered. By using the equation P = ρgh, where P is the pressure, ρ is the density of the fluid, g is the acceleration due to gravity, and h is the height, we can calculate the required height for the IV bag.
Step-by-step explanation:
The discharge of the regulator vent for an underground container must be above a certain height to ensure that the pressure of the fluid being administered is sufficient. To determine the height, we need to consider the gauge pressure required at the entry point of the fluid. In this specific situation, the blood pressure in the vein is given as 18 mm Hg above atmospheric pressure. To find the corresponding height, we can use the equation P = ρgh, where P is the pressure, ρ is the density of the fluid, g is the acceleration due to gravity, and h is the height. By rearranging the equation, we can solve for h: h = P / (ρg). Substituting the given values, we can calculate the required height for the IV bag.