A medical technician is trying to determine what percentage of a patient's artery is blocked by plaque. To do this, she measures the blood pressure just before the region of blockage and finds that it is 1.20×104 PaPa , while in the region of blockage it is 1.15×104 PaPa . Furthermore, she knows that blood flowing through the normal artery just before the point of blockage is traveling at 30.0 cm/scm/s , and the specific gravity of this patient's blood is 1.06. 1. What percentage of the cross-sectional area of the patient's artery is blocked by the plaque? Express your answer in percent.
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 medical technician is trying to determine what percentage of a patient's artery is blocked by plaque. To do this, she measures the blood pressure just before the region of blockage and finds that it is 1.20×104 PaPa , while in the region of blockage it is 1.15×104 PaPa . Furthermore, she knows that blood flowing through the normal artery just before the point of blockage is traveling at 30.0 cm/scm/s , and the specific gravity of this patient's blood is 1.06.
1.
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