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Related Concept Videos

Dialysis01:27

Dialysis

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Renal failure occurs when the kidneys lose their ability to filter waste products from the blood effectively. It can be classified into two types: acute renal failure (ARF) and chronic renal failure (CRF).
Acute kidney injury develops suddenly and can be caused by pre-renal causes (e.g., hypovolemia, shock), intrinsic renal causes (e.g., acute tubular necrosis), or post-renal causes (e.g., urinary obstruction). In contrast, chronic renal failure progresses gradually over time and is often...
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Dialysis01:15

Dialysis

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Dialysis is a diffusion-based purification process that separates analyte molecules from a complex matrix. This is accomplished by allowing molecules in the solution to pass through a semipermeable membrane into a liquid on the other side. The membrane is usually made of cellulose acetate or cellulose nitrate, and the second liquid must be miscible with the solution. Ions (e.g., chloride or sodium) or organic molecules (e.g., glucose) can pass through the membrane pores, which generally have...
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Hemodialysis I: Introduction01:25

Hemodialysis I: Introduction

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Hemodialysis (HD) is a medical treatment that artificially removes waste products, excess fluids, and toxins from the blood when the kidneys are no longer able to perform these functions effectively. In this process, blood is filtered through a semipermeable membrane, allowing for the selective removal of waste while preserving necessary components like blood cells and proteins. Hemodialysis is typically performed in patients with end-stage renal disease (ESRD) or severe kidney...
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Acute Kidney Injury V: Interprofessional Care01:20

Acute Kidney Injury V: Interprofessional Care

170
Acute Kidney Injury (AKI) requires a collaborative healthcare approach to restore renal function and prevent complications. Essential management strategies involve monitoring fluid and electrolyte balance, adjusting medications, initiating dialysis when necessary, and providing nutritional support.Fluid and Electrolyte ManagementFluid Monitoring: Regularly monitoring body weight, central venous pressure, and urine output helps detect fluid imbalances early. Patient intake and output are...
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Extracorporeal Removal of Drugs: Peritoneal Dialysis and Hemodialysis01:30

Extracorporeal Removal of Drugs: Peritoneal Dialysis and Hemodialysis

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Patients with end-stage renal disease (ESRD) or those experiencing drug overdose often require extracorporeal methods to eliminate accumulated drugs and metabolites. Hemoperfusion, hemofiltration, and dialysis are the primary techniques to rapidly remove harmful substances without disrupting the patient's fluid and electrolyte balance. For those with compromised renal function, dosage adjustments of concurrent medications may be necessary during extracorporeal drug removal.Dialysis is a process...
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Hemodialysis III: Nursing Management01:25

Hemodialysis III: Nursing Management

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The nursing management of a patient undergoing hemodialysis includes several critical steps, starting with a thorough assessment before the procedure.Before the Hemodialysis ProcedureFirst, record the patient's vital signs—blood pressure, heart rate, respiratory rate, and temperature—to establish a baseline. This baseline is essential for detecting conditions such as hypotension that could impact the patient's response to dialysis. Document the patient's pre-dialysis weight, as this...
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Evaluating dialysis adequacy: Origins, evolution, and future directions.

Bogdan Momciu1, Christopher T Chan1

  • 1Division of Nephrology, University Health Network, Toronto, Canada.

Seminars in Dialysis
|October 16, 2020
PubMed
Summary
This summary is machine-generated.

Dialysis adequacy has evolved from basic survival to measuring small solute removal. Current research suggests a broader definition is needed, incorporating residual kidney function, nutritional status, and cardiovascular health for improved patient quality of life.

Keywords:
adequacygoal-directed dialysisquality of lifesolutes and cardiovascular controlvolume

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Area of Science:

  • Nephrology
  • Renal Replacement Therapy
  • Dialysis Medicine

Background:

  • The concept of dialysis adequacy has historically centered on patient survival and small solute removal, notably urea.
  • The National Cooperative Dialysis Study significantly influenced the definition of adequacy, emphasizing quantitative measures.
  • This narrow focus has been challenged by evolving research highlighting multifactorial patient outcomes.

Purpose of the Study:

  • To critically evaluate the historical and current definitions of dialysis adequacy.
  • To propose an expanded definition of dialysis adequacy that incorporates a wider range of patient-specific factors.
  • To emphasize the importance of individual patient goals and quality of life in defining optimal dialysis therapy.

Main Methods:

  • Literature review of historical and contemporary studies on dialysis adequacy.
  • Analysis of factors beyond small solute clearance influencing patient outcomes.
  • Conceptual framework development for a holistic definition of adequacy.

Main Results:

  • Traditional urea-based adequacy metrics, while foundational, are insufficient for comprehensive patient care.
  • Residual kidney function (RKF), nutritional status, volume management, and cardiovascular health are critical determinants of patient outcomes.
  • Current evidence supports a shift towards personalized adequacy targets.

Conclusions:

  • The definition of dialysis adequacy requires a paradigm shift from solely solute removal to a more integrated approach.
  • Incorporating RKF, nutritional status, volume control, and cardiovascular health is essential for optimizing dialysis therapy.
  • An individualized approach to dialysis adequacy, considering patient goals and quality of life, is paramount for improved long-term outcomes.