Osmotic vs Oncotic

[Cheeezcake]

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1. Is there a difference between oncotic and osmotic pressures?

2. What role does albumin play in this

3. Is there a difference in action between albumin and other solutes in the blood?

 

[Cornfed101]

1. No
2. Albumin acts as the solute to make the blood hypotonic or hypertonic
3. In real life, yes. For the MCAT, no. The MCAT is never going to ask a quantitative question about osmotic pressure. Just qualitative (“which of the following will cause edema...”)