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Pathophysiology crna Questions and Answers with Solutions 2024/2025
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Pathophysiology crna Questions and Answers with Solutions 2024/2025
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Pathophysiology crnadiffusion - ANSMovement of molecules from an area of higher concentration to an area of lower
concentration
diffusion - ANSblood is pumped through filter and dialysate flows counter-currently, toxins move
to lower concentration of dialysate
cvvhdf - ANScontinuous veno-venous hemodiafiltration
convection - ANSwater is pushed through membrane using hydrostatic pressure dragging toxins
and waste through membrane
osmosis - ANSfluid moves from dilute solution to concentrated solution across semi-permeable
membrane to create equilibrium
pre filter - ANS-lower risk of clotting filter
-fluid being removed is replacement fluid
post filter - ANS-removes more of patient's fluid
-less replacement fluid required as it doesn't get filtered out
shunting - ANSalveoli are perfused but ventilation fails to supply oxygen
shunting - ANScaused by atelectasis, congestion, pneumonia
ards - ANSincreased capillary permeability, accumulation of fluid in alveoli causing decreased
compliance
h - ANShypovolemia, hypoxia, h+ excess, hypoglycemia, hypo/hyperkalemia, hypothermia
t - ANStension pneumo, tamponade, thrombus pe/mi, toxins, trauma
cardiac output - ANSheart rate x stroke volume
stroke volume index - ANSstroke volume/body surface area
diffusion - ANSclears small molecules across semi-permeable membrane generated by
concentration gradient
convection - ANSbulk flow of solute across semi-permeable membrane with a solvent
-dependent on tmp
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