Q4) During blood transfusion, suppose a container was placed 60 cm above the patient's arm with venous blood pressure of 3 mmHg as shown. If the density of blood is 1040 kg/m³. what is the net pressure acting to transfer the blood into the vein? What fraction of the atmospheric pressure would it be? What will happen to the net pressure if the distance between the blood container and the patient's arm is doubled. Blood Transfusion 50 0.010 QUIS -ang 14/0
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.
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