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Pharmacokinetics in Pediatric Patients: Drug Excretion

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...

Drug Dosing: Infants and Children

Drug Dosing: Infants and Children

Pediatric patient dosages diverge from adults due to disparities in body surface area, total body water, and extracellular fluid per kilogram of body weight. The dosing regimen considers the variations in pharmacokinetics and pharmacology across distinct age groups, encompassing preterm newborns, infants, young children, older children, and adolescents. Calculation of pediatric patient doses is predicated on determining body surface area, which exhibits a superior correlation with the child's...

Pharmacokinetics in Pediatric Patients: Drug Distribution

Pharmacokinetics in Pediatric Patients: Drug Distribution

Drug distribution in the pediatric population exhibits unique challenges and considerations due to the physiological differences between children, particularly neonates and infants, and adults. A crucial aspect of pediatric pharmacology is understanding how these differences impact the pharmacokinetics of various drugs, necessitating age-specific dosing strategies to ensure efficacy and safety.Neonates and infants have a higher total body water content, ~75%–90% of their body weight, compared...

Pharmacokinetics in Pediatric Patients: Overview and Drug Absorption

Pharmacokinetics in Pediatric Patients: Overview and Drug Absorption

Understanding the physiological differences in the pediatric population is crucial for effective pharmacotherapy. Neonates, infants, and children exhibit significant variations in gastric pH, gastric emptying time, intestinal transit time, and biliary function. These variations profoundly affect oral drug absorption, necessitating a nuanced approach to pediatric dosing.Neonates present with a unique physiological profile, having a gastric pH greater than 4 and faster and more irregular gastric...

Pharmacokinetics in Pediatric Patients: Drug Metabolism

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...

Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test

Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test

In clinical practice, the direct measurement of hepatic blood flow to evaluate liver function presents significant challenges due to the intricate and specialized nature of the necessary techniques. Consequently, healthcare professionals often rely on empirical estimates derived from thorough patient examinations and liver function tests to gauge liver health. Among the tools at their disposal, the Child–Pugh and MELD scoring systems stand out for their ability to categorize and assess the...

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Protocol and Guidelines for Point-of-Care Lung Ultrasound in Diagnosing Neonatal Pulmonary Diseases Based on International Expert Consensus

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Published on: March 6, 2019

Pediatric critical values: laboratory-pediatrician discourse.

Andrew C Don-Wauchope¹, Li Wang, Vijaylaxmi Grey

¹Department of Pathology and Molecular Medicine, McMaster University and Hamilton Regional Laboratory Medicine Program, 1200 Main Street West, Hamilton, Ontario, Canada. donwauc@mcmaster.ca

Clinical Biochemistry

|July 21, 2009

Summary

Pediatricians reviewed critical laboratory values to improve patient safety. A survey led to revised critical value procedures, enhancing communication and care for critically ill children.

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Published on: April 7, 2023

Area of Science:

Pediatric Critical Care Medicine
Clinical Pathology
Laboratory Medicine

Background:

Establishing accurate pediatric critical values is essential for timely medical intervention.
Current critical value lists require regular review and validation by clinical specialists.
Effective communication protocols for critical laboratory results are vital in pediatric settings.

Purpose of the Study:

To systematically review and revise pediatric critical laboratory values.
To enhance the procedures for communicating critical value results to clinicians.
To ensure the accuracy and clinical relevance of pediatric critical values.

Main Methods:

An electronic survey was distributed to pediatricians to assess agreement on 26 critical chemistry laboratory values.
A focus group of 3 pediatricians provided comments and reviewed survey results.
Response rate was 31 out of 125 affiliated pediatricians.

Main Results:

61.5% (16 of 26) of current critical values met agreement criteria.
Revised procedures were implemented for high glucose levels in neonates and children.
Low magnesium and low ionized calcium critical values were updated following expert review.

Conclusions:

The survey and focus group resulted in a revised list of pediatric critical values and improved calling procedures.
The need for area-specific critical values within a children's hospital was identified for future development.
Enhanced critical value management improves patient safety and clinical decision-making in pediatric care.