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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...
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 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 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...
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...

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Related Experiment Video

Updated: Jul 4, 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 in neonates.

Sreeram Subramanian1, Ramesh Agarwal, Ashok K Deorari

  • 1Department of Pediatrics, Division of Neonatology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India.

Indian Journal of Pediatrics
|June 10, 2008
PubMed
Summary

Neonatal acute renal failure (ARF) requires differentiating causes like hypovolemia. Fractional excretion of sodium and fluid challenges help distinguish prerenal from intrinsic failure, guiding management and monitoring for complications.

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Area of Science:

  • Neonatology
  • Pediatric Nephrology
  • Critical Care Medicine

Background:

  • Acute renal failure (ARF) is prevalent in neonatal intensive care units.
  • ARF is classified as prerenal, intrinsic renal, or postrenal.
  • A clear definition for neonatal ARF is lacking, necessitating accurate diagnostic approaches.

Purpose of the Study:

  • To highlight the importance of differentiating prerenal from intrinsic renal failure in neonates.
  • To discuss common causes and diagnostic indices for neonatal ARF.
  • To outline management strategies and potential long-term complications.

Main Methods:

  • Review of common causes of neonatal ARF including hypovolemia, hypotension, and hypoxia.
  • Emphasis on fractional excretion of sodium as a key diagnostic index.
  • Description of bedside diagnostic fluid challenges, with or without frusemide.

Main Results:

  • Fractional excretion of sodium is the preferred index for differentiating prerenal from intrinsic renal failure.
  • Fluid challenges are a practical bedside method for diagnosis.
  • Monitoring for and managing metabolic derangements (hyponatremia, hyperkalemia, hypocalcemia, acidosis) is crucial.

Conclusions:

  • Accurate differentiation of ARF types is critical for appropriate neonatal management.
  • Careful fluid balance and nutritional support are essential.
  • Peritoneal dialysis is a safe option, and long-term follow-up is necessary due to potential complications.