Chapter 75 - blood purification for intoxications and drug overdose Flashcards

1
Q

what are the two main mechanisms of solute removal in renal replacement therapy?

A

diffusion, convection (aka ultrafiltration)

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2
Q

describe diffusion in the context of renal replacement therapy

A

movement of solute across a semi-permeable membrane driven by transmembrane concentration gradient

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3
Q

describe convection (or ultrafiltration) in the context of renal replacement therapy

A

movement of water and resultant solvent drag occurring over a permeable membrane due to the transmembrane pressure gradient

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4
Q

which mechanism of solute removal works better for small molecules?

A

diffusion

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5
Q

which mechanism of solute removal works better for large molecules?

A

convection

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