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Davita RISE PCT Study Guide Exam Questions & Answers 2024/2025
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Davita RISE PCT Study Guide Exam Questions & Answers 2024/2025 List the four transport mechanisms that play a role in hemodialysis - ANSWERSUltrafiltration Convection Diffusion Osmosis Explain ultrafiltration in hemodialysis - ANSWERSFluid is pushed through the semipermeable membrane (SP...

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  • September 1, 2024
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  • 2024/2025
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Davita RISE PCT Study Guide Exam
Questions & Answers 2024/2025

List the four transport mechanisms that play a role in hemodialysis - ANSWERSUltrafiltration

Convection

Diffusion

Osmosis



Explain ultrafiltration in hemodialysis - ANSWERSFluid is pushed through the semipermeable membrane
(SPM). Think: wringing out a wet rag.



Explain convection in hemodialysis - ANSWERSSolutes DRAG across the semipermeable membrane with
fluid



Explain diffusion in hemodialysis - ANSWERSPARTICLES move from HIGH concentration to LOW
concentration



Explain osmosis in hemodialysis - ANSWERSFLUID moves LOW concentration to HIGH concentration



What are the kidneys' excretory functions? - ANSWERSTo normalize electrolytes, remove wastes, provide
fluid and nutrient balance



How do we replace normal excretory kidney functions? - ANSWERSBy using acid concentrate to help
normalize electrolytes and ultrafiltration to provide fluid balance



What is the function of acid concentrate - ANSWERSProvides the concentration gradient for diffusion and
helps normalize electrolytes



What is the function of bicarbonate in the dialysate solution? - ANSWERSIt buffers the acid concentrate

,What is the function of bicarbonate when it diffuses into the patient's blood? - ANSWERSIt normalizes
body pH



What are some S/Sx of hyperkalemia? - ANSWERSK+ > 6.5 mEq

extreme muscle weakness, dysrhythmias, and possible cardiac arrest



What are some S/Sx of hypokalemia? - ANSWERSK+ < 3.5 mEq

fatigue, muscle weakness, paralysis, resp. failure, cardiac instability, arrhythmias, cardiac arrest



What is the normal blood pH range? - ANSWERS7.35 - 7.45



What are the kidneys' endocrine functions? - ANSWERSRenin secretion

Erythropoietin secretion

Vitamin d activation



How do we replace normal endocrine kidney functions? - ANSWERSBy providing medications



How much of normal kidney function is replaced by HD? - ANSWERS15%



What is uremia? - ANSWERSUremia is a buildup of wastes in the blood due to kidney failure



What does uremia affect? - ANSWERSUremia affects all body systems



What are the most common causes of CKD in the US? - ANSWERSdiabetes, HTN and polycystic kidney
disease



List the treatment goals for a pt. w/ CKD - ANSWERS-slowing the progression of CKD

-managing comorbidities and complications

, -controlling symptoms

-minimizing the effects if CKD on pt. lifestyles

-kidney replacement therapy modality education

-encouraging patients to actively participate in their healthcare



Why is it so important to know what caused your pt.'s CKD? - ANSWERSSo the RN and PCT can ask about
possible problems during data collection and assessment



List some S/Sx of fluid imbalance - ANSWERSHTN, edema, and SOB



Why is sodium balance important? - ANSWERSLeads to volume expansion,

increased cardiac output,

increased peripheral vascular resistance

and increased BP



List some systemic effects of CKD - ANSWERS-Dry, itchy skin

-Peripheral neuropathy in the extremities

-GI problems (N/V)

-Psychological problems (anxiety, depression)



What would you advise for a pt. with dry, itchy skin? - ANSWERS-use hyper-fatted soaps and lotions

-assess for safety at home

-provide emotional support

-control diabetes and phosphorus



What would you advise for a pt. with peripheral neuropathy? - ANSWERS-Monitor pt. for changes in
motor function, decreased strength in legs, C/O restless legs, and burning feet.

-Advise not to walk barefoot

-Practice good foot care

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