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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...
Acute Kidney Injury IV: Diagnostic Studies and Prevention01:30

Acute Kidney Injury IV: Diagnostic Studies and Prevention

Accurate diagnosis and effective prevention are critical in managing Acute Kidney Injury (AKI), which is linked to high mortality rates ranging from 10% to 80%. Timely recognition of at-risk patients and careful monitoring can significantly reduce the likelihood of kidney damage.Diagnostic Assessments:The diagnostic process starts with a comprehensive medical history to identify prerenal, intrarenal, and postrenal causes.Prerenal causes, such as dehydration, hypotension, or blood loss, should...
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...
Acute Kidney Injury VI: Nursing Management01:22

Acute Kidney Injury VI: Nursing Management

Acute Kidney Injury (AKI) results in an inability to maintain fluid, electrolyte, and acid-base balance. Effective nursing management is critical in improving patient outcomes and includes comprehensive patient assessment and targeted interventions.Comprehensive Patient AssessmentA detailed history collection is essential, focusing on any recent infections, nephrotoxic medication use, or chronic conditions such as hypertension and diabetes that may contribute to AKI. During the physical...

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Related Experiment Video

Updated: Jun 5, 2026

Technical Refinement of a Bilateral Renal Ischemia-Reperfusion Mouse Model for Acute Kidney Injury Research
03:13

Technical Refinement of a Bilateral Renal Ischemia-Reperfusion Mouse Model for Acute Kidney Injury Research

Published on: November 3, 2023

Acute kidney injury: lessons from experimental models.

Samuel N Heyman, Christian Rosenberger, Seymour Rosen

    Contributions to Nephrology
    |January 22, 2011
    PubMed
    Summary

    Acute kidney injury (AKI) is often not characterized by severe tubular necrosis. Researchers describe

    Area of Science:

    • Nephrology
    • Pathology
    • Experimental Medicine

    Background:

    • Traditional models of acute renal failure (ARF) focused on severe tubular necrosis, aligning with the term 'acute tubular necrosis'.
    • However, human kidney biopsies in acute kidney injury (AKI) show a rarity of tubular necrosis, prompting a shift to the broader term AKI.
    • Experimental AKI models reveal a spectrum of injury, from stress responses to cell death, not always including necrosis.

    Purpose of the Study:

    • To define and explore the concept of 'sublethal injury' in the context of acute kidney injury (AKI).
    • To highlight injury patterns in AKI that may not involve frank necrosis but can lead to organ dysfunction.
    • To discuss methods for detecting sublethal injury, including morphological changes, survival factors, biomarkers, and imaging.

    Main Methods:

    More Related Videos

    Mouse Model of Acute to Chronic Kidney Disease Transition Induced by Renal Ischemia/Reperfusion Injury
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    Mouse Model of Acute to Chronic Kidney Disease Transition Induced by Renal Ischemia/Reperfusion Injury

    Published on: February 10, 2026

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    Technical Refinement of a Bilateral Renal Ischemia-Reperfusion Mouse Model for Acute Kidney Injury Research
    03:13

    Technical Refinement of a Bilateral Renal Ischemia-Reperfusion Mouse Model for Acute Kidney Injury Research

    Published on: November 3, 2023

    Mouse Model of Acute to Chronic Kidney Disease Transition Induced by Renal Ischemia/Reperfusion Injury
    07:02

    Mouse Model of Acute to Chronic Kidney Disease Transition Induced by Renal Ischemia/Reperfusion Injury

    Published on: February 10, 2026

    • Review of experimental models of acute kidney injury (AKI) and human biopsy data.
    • Analysis of injury spectrum ranging from adaptive stress to cell death.
    • Discussion of detection methods for sublethal injury, including biomarkers and imaging.

    Main Results:

    • Sublethal injury, insufficient to cause cell death but potentially leading to organ failure, is a key aspect of AKI.
    • These sublethal changes may be morphologically subtle or functionally significant, and can even confer resistance to future insults.
    • Combined sublethal insults in animal models aim to mimic clinical comorbidities in AKI.

    Conclusions:

    • Acute kidney injury (AKI) encompasses a range of cellular responses and injuries beyond severe tubular necrosis.
    • The concept of sublethal injury is crucial for understanding AKI pathophysiology and its clinical manifestations.
    • Further research into detecting and characterizing sublethal injury is needed for improved diagnosis and management of AKI.