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Related Concept Videos

Acute Kidney Injury I: Introduction01:22

Acute Kidney Injury I: Introduction

Introduction:Acute Kidney Injury (AKI) describes a swift decrease in kidney function occurring over hours to days, characterized by the kidneys' failure to remove waste products from the bloodstream. This leads to dangerous complications like metabolic acidosis, fluid overload, and electrolyte imbalances, such as hyperkalemia, which can cause life-threatening arrhythmias. AKI is common in both hospital and outpatient settings, often triggered by dehydration, sepsis, or exposure to nephrotoxic...
Dialysis01:27

Dialysis

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...
Renal Failure: Dose Adjustments01:11

Renal Failure: Dose Adjustments

In patients with renal impairment, drugs undergo significant changes in their pharmacokinetics, which require dosage adjustments to ensure safe and effective therapy.
Reduced renal clearance and elimination rate are common outcomes of renal impairment. These alterations lead to a prolonged elimination half-life and an altered apparent volume of distribution for drugs. As a result, dosage adjustments are typically necessary to maintain optimal drug levels in the body.
However, dosage adjustments...
Acute Kidney Injury II: Pathophysiology01:29

Acute Kidney Injury II: Pathophysiology

Acute kidney injury (AKI) causes are categorized into three primary categories based on the location of the injury: prerenal, intrarenal (or intrinsic), and postrenal causes. This classification guides clinical management and illustrates how different pathways can impair kidney function.Etiology and Pathophysiology of Acute Kidney Injury1. Prerenal causesEtiology: Prerenal Acute Kidney Injury, the most common type, occurs when reduced blood flow to the kidneys decreases filtration capacity...
Acute Kidney Injury V: Interprofessional Care01:20

Acute Kidney Injury V: Interprofessional Care

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...
Acute Kidney Injury III: Clinical Manifestations01:29

Acute Kidney Injury III: Clinical Manifestations

Acute Kidney Injury (AKI) progresses through distinct clinical phases: the oliguric, diuretic, and recovery phases, each marked by unique manifestations and challenges.Oliguric Phase:The oliguric phase is the initial stage of AKI, typically lasting 10 to 14 days. This phase is marked by a significant reduction in urine output, usually less than 400 mL per day, indicating decreased kidney function. Fluid retention is a prominent feature, leading to symptoms such as edema, hypertension, and...

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Related Experiment Video

Updated: May 28, 2026

A Large Animal Model for Acute Kidney Injury by Temporary Bilateral Renal Artery Occlusion
09:02

A Large Animal Model for Acute Kidney Injury by Temporary Bilateral Renal Artery Occlusion

Published on: February 2, 2021

Acute renal failure.

Rinaldo Bellomo1

  • 1Department of Intensive Care, Austin Hospital, Melbourne, Victoria, Australia. rinaldo.bellomo@austin.org.au

Seminars in Respiratory and Critical Care Medicine
|October 13, 2011
PubMed
Summary
This summary is machine-generated.

Acute kidney injury (AKI) is common in critical illness. Early biomarkers and conservative fluid management are key to improving outcomes and identifying patients at risk for chronic kidney disease.

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Nephrotoxin Microinjection in Zebrafish to Model Acute Kidney Injury
07:58

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Published on: July 17, 2016

Area of Science:

  • Nephrology
  • Critical Care Medicine
  • Proteomics

Background:

  • Acute kidney injury (AKI) affects 30-60% of critically ill patients.
  • Sepsis and cardiac surgery are leading causes of AKI in the ICU.
  • Current diagnostic methods (serum creatinine) are delayed, hindering early intervention.

Purpose of the Study:

  • To review current understanding and challenges in AKI management.
  • To highlight advancements in early biomarker discovery.
  • To discuss the evolving role of fluid management in AKI.

Main Methods:

  • Review of epidemiological studies and consensus definitions (RIFLE).
  • Exploration of proteomics for novel biomarker identification (e.g., neutrophil gelatinase-associated lipocalin).
  • Analysis of data from observational studies and randomized trials on fluid resuscitation.

Main Results:

  • Positive fluid balance is a significant risk factor for mortality in AKI.
  • A shift towards a fluid-conservative approach is evident.
  • Early biomarkers like neutrophil gelatinase-associated lipocalin show promise.

Conclusions:

  • Limited understanding of AKI pathogenesis necessitates novel diagnostic and therapeutic strategies.
  • Early detection through biomarkers and refined fluid management are crucial.
  • AKI may predict long-term renal dysfunction and mortality, warranting further research and intervention.