, 10/24/24, 2:47 PM Davita final exam | 2024-2025 UPDATE COMPREHENSIVE MOST FREQUENTLY TESTED QUESTIONS AND VERIFIED A…
● Ultrafiltration: Fluid is pushed through a
semipermeable membrane.
● Convection: Or solute drag means that solutes
move with the water across the semipermeable
membrane. In this way, convection adds to the
clearance achieved through diffusion as solutes are
dragged along with the ultrafiltrate.
● Diffusion: Is the movement of dissolved particles
across a semipermeable membrane from the side
with the higher concentration to the side with the
lower concentration. This difference in solute
Explain the four transport concentration on each side of the membrane is
mechanisms that play a called concentration gradient. The higher the
role in hemodialysis concentration gradient, the faster diffusion occurs.
Once the concentration of a dissolved particle is the
same on both sides of the semipermeable
membrane, diffusion stops.
● Osmosis: Is a chemical process by which dissolved
chemicals will migrate from an area of high
concentration to one of low
concentration. Essentially if you dissolve something
in a liquid, the dissolved compounds (called solutes)
will spread out until there is
an equal concentration of solute everywhere.
What are the kidneys To normalize electrolytes, remove wastes, provide
excretory functions fluid and nutrient balance
What is the function of Provides the concentration gradient for diffusion
the acid concentration and helps normalize electrolytes
What is the function of Buffers the acid concentrate
bicarbonate
Signs and symptoms of > 5.5 mEq: extreme muscle weakness, abnormal
hyperkalemia heart rhythm, possible cardiac arrest
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