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Related Concept Videos

Pharmacokinetics in Pediatric Patients: Drug Excretion01:26

Pharmacokinetics in Pediatric Patients: Drug Excretion

In pediatric medicine, understanding the renal function and drug elimination nuances is crucial for administering safe and effective treatments. Newborns, in particular, display markedly slower renal functions than adults, profoundly affecting how drugs are cleared from their bodies. This slower drug clearance requires clinicians to extend the dosing intervals for many medications to prevent drug accumulation and toxicity while ensuring therapeutic efficacy.One key area where these adjustments...
Pharmacokinetics in Pediatric Patients: Drug Metabolism01:24

Pharmacokinetics in Pediatric Patients: Drug Metabolism

In pediatric care, understanding the nuances of hepatic drug metabolism is crucial, as it significantly differs from that of adults. This divergence is primarily due to the developmental stage of drug-metabolizing enzymes, which affects how medications are processed in the body. In neonates, for instance, the activity of Phase I enzymes—critical for the initial breakdown of drugs—is markedly reduced, functioning at just 20–40% of the levels seen in adults. This reduction poses a challenge in...
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...
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion01:18

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion

In geriatric patients, renal physiology undergoes significant changes, including diminished renal blood flow and a lower glomerular filtration rate (GFR), leading to alterations in medication clearance. Drugs such as aminoglycoside antibiotics, lithium, and digoxin, which rely on glomerular filtration for removal from the body, particularly impact pharmacokinetics. These drugs tend to have slower clearance rates in older adults, necessitating careful dosage considerations.Evaluation of renal...
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...
Factors Affecting Renal Clearance: Renal Impairment01:17

Factors Affecting Renal Clearance: Renal Impairment

Renal dysfunction significantly impairs the renal clearance of drugs, leading to potential complications in drug therapy. Renal failure, which can be caused by various factors, poses a significant challenge in the elimination of drugs from the body.
One condition associated with renal failure is uremia. Uremia is characterized by impaired glomerular filtration and fluid accumulation in the body. This condition hinders the renal clearance of drugs, resulting in drug accumulation and potential...

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Related Experiment Video

Updated: Jul 8, 2026

Early Detection of Drug-Induced Renal Hemodynamic Dysfunction Using Sonographic Technology in Rats
06:38

Early Detection of Drug-Induced Renal Hemodynamic Dysfunction Using Sonographic Technology in Rats

Published on: March 11, 2016

[Renal function and pharmacotherapy in children].

O Jovanović

    Srpski Arhiv Za Celokupno Lekarstvo
    |June 1, 1995
    PubMed
    Summary

    Drug disposition in infants and children differs due to maturation. This review details drug-induced kidney injury (nephrotoxicity) and guidelines for drug dosing in pediatric renal failure.

    Area of Science:

    • Pharmacology
    • Nephrology
    • Pediatrics

    Context:

    • Infants and children exhibit age-related physiological and biochemical differences impacting drug pharmacokinetics.
    • Kidney function, including glomerular filtration and tubular function, undergoes significant changes during early development.
    • The kidney serves as a primary route for drug and metabolite elimination, making it susceptible to drug-induced damage.

    Purpose:

    • To review the impact of maturation and renal failure on drug disposition.
    • To describe drug-induced renal syndromes (nephrotoxicity).
    • To provide prescribing guidelines for drugs in children with end-stage renal disease.

    Summary:

    • Drug pharmacokinetics are significantly altered in infants and children due to immature organ function and body composition.

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    Last Updated: Jul 8, 2026

    Early Detection of Drug-Induced Renal Hemodynamic Dysfunction Using Sonographic Technology in Rats
    06:38

    Early Detection of Drug-Induced Renal Hemodynamic Dysfunction Using Sonographic Technology in Rats

    Published on: March 11, 2016

    Isolation, Characterization, And High Throughput Extracellular Flux Analysis of Mouse Primary Renal Tubular Epithelial Cells
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    Isolation, Characterization, And High Throughput Extracellular Flux Analysis of Mouse Primary Renal Tubular Epithelial Cells

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  • Decreased renal function in renal failure changes drug pharmacokinetic profiles, necessitating dose adjustments.
  • The review covers common medications causing acute and chronic kidney injury, including immune-mediated damage.

    • Impact:

    • Informs drug dosing strategies for pediatric patients with impaired kidney function.
    • Enhances understanding of nephrotoxicity mechanisms and clinical manifestations.
    • Provides essential guidance for safe medication use in children with end-stage renal disease.