How tall must a water-filled manometer be to measure blood pressure as high as 300 mm Hg?
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A: given height, h=13 m gauge pressure, p=2.2 atm =2.2*1.01*10^5 pa we know that gauge pressure…
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- The heat pumps blood at an average flow rate of 80.0cm^3/s into the aorta, which has a diameter of 1.5cm. Determine the average speed of the blood in the aorta. If the diameter of the aorta is reduced to a diameter of 1.2am, but the volumetric flow is the same, what will the new speed of the blood be?At a given instant, the blood pressure in the heart is 1.4 x 104 Pa. If an artery in the brain is 0.37 m above the heart, what is the pressure in the artery? Ignore any pressure changes due to blood flow.The weight of a body is usually measured by disregarding buoyancy force applied by the air. Consider a 20-cm-diameter spherical body of density 7800 kg/m3. What is the percentage error associated with the neglecting of air buoyancy?
- A 1.50 mL syringe has an inner diameter of 5.50 mm, a needle inner diameter of 0.230 mm, and a plunger pad diameter (where you place your finger) of 1.2 cm. A nurse uses the syringe to inject medicine into a patient whose blood pressure is 140/100. What is the minimum force the nurse needs to apply to the syringe? The nurse empties the syringe in 2.10 s. What is the flow speed of the medicine through the needle?Blood plasma (at 37.0°C) is to be supplied to a patient at the rate of 2.80 × 10−6 m3/s. If the tube connecting the plasma to the patient’s vein has a radius of 2.00 mm and a length of 67.6 cm, what is the pressure difference between the plasma and the patient’s vein? Viscosity of blood plasma is 1.30 × 10−3 Pa·s. ____PaThe top of your head is about 30 cm above your heart. What is the blood pressure difference between your heart and the top of your head?
- An Oil refinery needs to pump oil of different densities from the import truck to its holding tank 17 meters above the ground. If they use a pump that can produce 3.3 atms of pressure, what is the highest density fluid that they can lift to that height? Give answer in kg/m3A medical technician is trying to determine what percentage of a patient's artery is blocked by plaque. To do this, she measured the blood pressure just before the region of blockage and finds that it is 1.20 × 104 Pa, while in the region of blockage it is 1.15 x 104 Pa. Furthermore, she knows that blood flowing through the normal artery just before the point of blockage is travelling at 30.0 cm/s. What percentage of the cross-sectional area of the patient's artery is blocked by the plaque?PROBLEM 3: The two-fluid U-tube manometer is being used to measure the difference in pressure at two points in a line containing air at 1 atm absolute pressure. The lighter fluid is a hydrocarbon with density equals to 812kg/m³ and the heavier water with density equals to 998kg/m³. The inside diameters of the U tube and reservoir are 3.2 mm and 54.2 mm, respectively. The reading of the manometer is 120.0 mm. Use the formula Pa – P, = R(pa – P6)g - where a and b are the two different fluids and R is the manometer reading. Calculate the pressure drop in (a) mmHg and (b) Pa.
- 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 13 kPa while in the region of blockage it is 12 kPa. Furthermore, she knows that blood flowing through the normal artery just before the point of blockage is traveling at 0.32 m/s, and the specific gravity of this patient’s blood is 1.06. What percentage of the cross-sectional area of the patient’s artery is blocked by the plaque?Suppose you measure a standing person’s blood pressure by placing the cuff on his leg 0.495 m below the heart. For this problem, assume that there is no loss of pressure due to resistance in the circulatory system (a reasonable assumption, since major arteries are large). The density of blood is 1.05 × 103 kg/m3. Calculate the systolic pressure you would observe, in units of mm Hg, if the pressure at the heart was 120 over 80 mm Hg. Note that the to (and greater) number is systolic pressure. Ps? Calculate the diastolic pressure you would observe, in unites of mm Hg, if the pressure at heart was 120 overc80cmm Hg. Note that the bottom (smaller) number is the diastolic pressure.Pd?How tall must a water-filled manometer be to measure blood pressures as high as 300 mm Hg?