A patient needing a blood transfusion has a blood pressure of 120/70 (this is in units of mm Hg). It is best for the blood during the transfusion, to have a pressure that matches the patient’s diastolic pressure (70 mm Hg). At what height, above the insertion point, should the blood supply be raised, such that it has the desired pressure of 70 mmHg is reached? (Density of blood is 1.06 * 10^3 kg/m^3 and 1 mm Hg= 133 Pascals)
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 needing a blood transfusion has a blood pressure of 120/70 (this is in units of mm
Hg). It is best for the blood during the transfusion, to have a pressure that matches the patient’s
diastolic pressure (70 mm Hg). At what height, above the insertion point, should the blood
supply be raised, such that it has the desired pressure of 70 mmHg is reached? (Density of
blood is 1.06 * 10^3 kg/m^3 and 1 mm Hg= 133 Pascals)
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
