PHYSIOLOGY
PULMONARY PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is the normal oncotic pressure of the blood?
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10 to 15 mm Hg
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15 to 20 mm Hg
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20 to 25 mm Hg
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25 to 30 mm Hg
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Explanation:
Detailed explanation-1: -The oncotic pressure exerted by proteins in human plasma has a normal value of approximately 26 to 28 mm Hg.
Detailed explanation-2: -Osmotic pressure = n x (c/M) x RT where: n is the number of particles into which the substance dissociates ( n = 1 for plasma proteins) c is the concentration in G/l.
Detailed explanation-3: -That is, the blood flowing into the glomerulus contains plasma proteins and blood cells that displace the water content of the blood. This creates, in effect, a counter force called oncotic pressure, as water outside the capillaries seeks to equalize with the water inside the capillaries through osmosis.
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