When body surface area is affected by a burn, capillaries leak fluid containing serum proteins such as albumin. A burn patient is treated with continuous intravenous infusions of albumin during the healing process. Compared to a burn patient control (no albumin infusions), the treated patient's capillary oncotic pressure will most likely be:A.increased.B.decreased.C.the same.D.increased, but fluid leakage will also increase over time.
Question
When body surface area is affected by a burn, capillaries leak fluid containing serum proteins such as albumin. A burn patient is treated with continuous intravenous infusions of albumin during the healing process. Compared to a burn patient control (no albumin infusions), the treated patient's capillary oncotic pressure will most likely be:A.increased.B.decreased.C.the same.D.increased, but fluid leakage will also increase over time.
Solution
The answer is A. Increased.
Here's why:
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Oncotic pressure, also known as colloid osmotic pressure, is a form of osmotic pressure exerted by proteins, notably albumin, in a blood vessel's plasma (blood/liquid) that usually tends to pull water into the circulatory system.
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In the case of a burn, capillaries leak fluid which reduces the concentration of albumin in the blood. This decrease in albumin concentration reduces the oncotic pressure, which can lead to edema (swelling caused by excess fluid trapped in body's tissues).
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When a burn patient is treated with continuous intravenous infusions of albumin, the concentration of albumin in the blood increases. This increase in albumin concentration increases the oncotic pressure.
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Therefore, compared to a burn patient control (no albumin infusions), the treated patient's capillary oncotic pressure will most likely be increased.
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