Accepted at 8:05 p.m. Feb, 28, 2025 by Brian_BH
Author: pkaps01
Related Note: 1555812417469
Rationale for change

Current wording is wrong/misleading as evidenced by details included in the extra section alone.

While oncotic pressure is considered a type of osmotic pressure, it specifically refers to the pressure that draws fluid INTO the blood vessel.

However, osmotic pressure (as described by the extra) refers to the pressure required to prevent the movement of water across a semipermeable membrane due to differences in solute concentration. Osmotic pressure does not always move fluid into blood vessels. The direction of water movement depends on the osmotic gradient. If plasma has a higher osmotic pressure than interstitial fluid, water moves into the vessel; if the interstitial fluid has a higher osmotic pressure, water moves out. As currently worded, osmotic pressure only refers to the movement of fluid into the blood vessel which isnt true this is specifically oncotic pressure.

Im guessing this wording came from the linked article in the extra section and was pasted incorrectly: the article: "Oncotic pressure, also known as colloid osmotic pressure"

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