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Related Concept Videos

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...
Pharmacokinetics: Drug–Drug Interactions01:25

Pharmacokinetics: Drug–Drug Interactions

Drug interactions occur when the pharmacological effect of one drug is altered by another substance, either enhancing or diminishing its activity. The drug whose activity is altered is known as the object drug, and the substance causing the alteration is called the agent drug or the precipitant. The net effects of these interactions are mostly undesirable, leading to decreased effectiveness or increased adverse effects. In rare cases, interactions can be beneficial, such as the enhanced...
Factors Affecting Renal Clearance: Drug Distribution and Drug Interactions01:09

Factors Affecting Renal Clearance: Drug Distribution and Drug Interactions

Renal clearance plays a pivotal role in drug elimination from the body and can be influenced by drug distribution and interactions. Understanding these factors is crucial in pharmacology as they impact the effectiveness and duration of drug therapy.
One important factor is the relationship between renal clearance and the apparent volume of distribution. Renal clearance tends to be inversely proportional to the apparent volume of distribution. Drugs with an extensive distribution volume or those...
Drug toxicity: Drug–Drug Interaction01:30

Drug toxicity: Drug–Drug Interaction

Drug–drug interactions can precipitate toxicity through multiple mechanisms. Absorption interactions alter how drugs enter the body, exemplified when ranitidine increases the absorption of basic drugs, while cholestyramine decreases the levels of propranolol. Protein binding interactions occur when drugs share the same binding sites on plasma proteins. Drugs like aspirin and warfarin, when bound in excess, can lead to increased free drug concentrations, enhancing the potential for...
Drug Dosing in Renal Diseases: Dose Adjustments Based on Drug Clearance and Elimination Rate Constant01:25

Drug Dosing in Renal Diseases: Dose Adjustments Based on Drug Clearance and Elimination Rate Constant

In patients with renal disease, dosage adjustments are necessary to maintain therapeutic plasma drug concentrations and prevent toxicity or subtherapeutic exposure. Renal impairment alters drug pharmacokinetics, especially in conditions like uremia, where changes such as prolonged elimination half-life and altered apparent volume of distribution can significantly affect drug disposition. These changes require careful modification of the dosing regimen to achieve the desired clinical...
Renal Drug Excretion: Overview01:15

Renal Drug Excretion: Overview

As primary excretory organs, the kidneys maintain homeostasis by removing waste substances from the bloodstream. They comprise over a million units called nephrons, which serve as the kidney's functional units.
A nephron consists of two primary structures: the renal corpuscle and the renal tubule. The renal corpuscle contains the glomerulus, a network of capillaries where the first step of renal excretion, glomerular filtration, occurs. Blood pressure forces water, ions, and small molecules out...

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Related Experiment Video

Updated: Jun 18, 2026

Establishment and Validation of a Rat Model of Pulmonary Arterial Hypertension Associated with Pulmonary Fibrosis
07:11

Establishment and Validation of a Rat Model of Pulmonary Arterial Hypertension Associated with Pulmonary Fibrosis

Published on: May 23, 2025

Pulmonary/renal interaction.

Zaccaria Ricci1, Claudio Ronco

  • 1Department of Pediatric Cardiosurgery, Bambino Gesù Hospital, Rome, Italy. z.ricci@libero.it

Current Opinion in Critical Care
|November 26, 2009
PubMed
Summary
This summary is machine-generated.

Acute kidney injury and acute lung injury worsen each other through complex interactions. Optimizing fluid management and preventing lung injury are key treatments for this kidney-lung crosstalk in critically ill patients.

Related Experiment Videos

Last Updated: Jun 18, 2026

Establishment and Validation of a Rat Model of Pulmonary Arterial Hypertension Associated with Pulmonary Fibrosis
07:11

Establishment and Validation of a Rat Model of Pulmonary Arterial Hypertension Associated with Pulmonary Fibrosis

Published on: May 23, 2025

Area of Science:

  • Critical care medicine
  • Nephrology
  • Pulmonology

Background:

  • Acute kidney injury (AKI) and acute lung injury (ALI) are interconnected, with each condition exacerbating the other.
  • Volume overload in renal impairment increases pulmonary capillary hydrostatic pressure, but lung damage can occur without positive fluid balance.
  • ALI, characterized by hypoxemia and hypercapnia, negatively impacts renal hemodynamics and function.

Purpose of the Study:

  • To review the evidence on kidney-lung crosstalk in critically ill patients.
  • To analyze the mechanisms of multiple organ failure involving kidney and lung dysfunction.
  • To hypothesize potential therapeutic options for kidney/lung dysfunction.

Main Methods:

  • Review of current scientific literature on kidney-lung interactions.
  • Analysis of immune, inflammatory, and mediator balance in severe insults (shock, trauma, sepsis).
  • Exploration of clinical implications and therapeutic strategies for kidney and lung dysfunction.

Main Results:

  • Evidence suggests significant kidney-lung crosstalk during severe insults due to dysregulation of immune and inflammatory mediators.
  • This interaction plays a crucial role in the development of multiple organ failure.
  • Understanding these mechanisms opens possibilities for novel therapeutic interventions.

Conclusions:

  • Optimizing fluid management and preventing lung inflammation and stretching are current recommendations for treating AKI and ALI.
  • Future therapeutic strategies may include extracorporeal CO2 removal, renal replacement therapy, and extracorporeal membrane oxygenation for pulmonary/renal syndrome.