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Related Concept Videos

Acute Kidney Injury I: Introduction01:22

Acute Kidney Injury I: Introduction

202
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...
202
Acute Kidney Injury IV: Diagnostic Studies and Prevention01:30

Acute Kidney Injury IV: Diagnostic Studies and Prevention

103
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...
103
Acute Kidney Injury II: Pathophysiology01:29

Acute Kidney Injury II: Pathophysiology

350
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...
350
Acute Kidney Injury III: Clinical Manifestations01:29

Acute Kidney Injury III: Clinical Manifestations

341
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...
341
Acute Kidney Injury V: Interprofessional Care01:20

Acute Kidney Injury V: Interprofessional Care

92
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...
92
Acute Kidney Injury VI: Nursing Management01:22

Acute Kidney Injury VI: Nursing Management

145
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...
145

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Related Experiment Video

Updated: Oct 28, 2025

Bilateral Renal Ischemia-Reperfusion Model for Acute Kidney Injury in Mice
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Bilateral Renal Ischemia-Reperfusion Model for Acute Kidney Injury in Mice

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Acute kidney injury.

John A Kellum1, Paola Romagnani2, Gloria Ashuntantang3

  • 1Center for Critical Care Nephrology, Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, USA.

Nature Reviews. Disease Primers
|July 16, 2021
PubMed
Summary
This summary is machine-generated.

Acute kidney injury (AKI) is a sudden loss of kidney function, often leading to chronic kidney disease (CKD). Early detection and prevention are crucial for managing this global health concern.

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Area of Science:

  • Nephrology
  • Critical Care Medicine
  • Public Health

Background:

  • Acute kidney injury (AKI) signifies a rapid decline in kidney function, encompassing acute kidney diseases and disorders (AKD).
  • AKI and AKD represent a spectrum of conditions that can progress to chronic kidney disease (CKD) due to irreversible nephron loss.
  • The global prevalence of AKI is significant, with varying primary causes across different income-level countries.

Purpose of the Study:

  • To summarize the current understanding of acute kidney injury (AKI) and acute kidney diseases and disorders (AKD).
  • To highlight the diverse causes, challenging management, and significant consequences of AKI.
  • To emphasize the critical need for early detection and prevention strategies for AKI.

Main Methods:

  • Review of existing literature on acute kidney injury (AKI) and acute kidney diseases and disorders (AKD).
  • Analysis of epidemiological data regarding the causes and prevalence of AKI globally.
  • Synthesis of information on clinical management challenges and long-term outcomes of AKI.

Main Results:

  • AKI is characterized by sudden excretory kidney function loss and is linked to CKD progression.
  • Causes of AKI differ globally, with infections and hypovolemic shock prevalent in low-income countries, and sepsis/drugs in high-income settings.
  • AKI management is complex, requiring careful fluid/electrolyte balance and kidney support, with kidney replacement therapy often necessary.

Conclusions:

  • AKI and AKD pose a substantial global health burden with diverse underlying mechanisms.
  • Effective management of AKI in critical care is challenging but essential for patient survival.
  • Long-term sequelae of AKI include CKD and cardiovascular disease, underscoring the importance of prevention and early identification.