Consider a hospital patient who receives an IV (intravenous) injection under gravity flow, as shown in Figure 9.12. If the blood gauge pressure in the vein is \(20.0 \mathrm{~mm} \mathrm{Hg}\), above what height should the bottle be placed for the IV blood transfusion to function properly?

THINKING IT THROUGH. The fluid gauge pressure at the bottom of the IV tube must be greater than the pressure in the vein and can be computed from Equation 9.9. (The liquid is assumed to be incompressible.) Equation (9.9):

Equation 9.11:

Transcribed Image Text:

p=pgh (Fluid pressure at depth h) (9.9)