s to be given a blood transfusion. The blood is to flow from a tube from a raised bottle to a needle inserted in the vein. The inside diameter of the 4 cm long needle is 0.42 mm and the required flow rate is 6 mL of blood per minute. How high should the bottle be placed above the needle? Assume that the blood pressure is 16 torr more than atmospheric pressure. ρ = 1.028 gram/cc
Fluid Pressure
The term fluid pressure is coined as, the measurement of the force per unit area of a given surface of a closed container. It is a branch of physics that helps to study the properties of fluid under various conditions of force.
Gauge Pressure
Pressure is the physical force acting per unit area on a body; the applied force is perpendicular to the surface of the object per unit area. The air around us at sea level exerts a pressure (atmospheric pressure) of about 14.7 psi but this doesn’t seem to bother anyone as the bodily fluids are constantly pushing outwards with the same force but if one swims down into the ocean a few feet below the surface one can notice the difference, there is increased pressure on the eardrum, this is due to an increase in hydrostatic pressure.
A patient is to be given a blood transfusion. The blood is to flow from a tube from a raised bottle to a needle inserted in the vein. The inside diameter of the 4 cm long needle is 0.42 mm and the required flow rate is 6 mL of blood per minute. How high should the bottle be placed above the needle? Assume that the blood pressure is 16 torr more than atmospheric pressure.
ρ = 1.028 gram/cc
η = 1.503 millipascal-second
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