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Related Concept Videos

Pedigree Analysis01:35

Pedigree Analysis

Overview
Teratogenicity01:07

Teratogenicity

The ability of a drug to produce structural deformations and functional abnormalities in the developing embryo or the fetus is called teratogenicity, and the drug producing this effect is known as a teratogen. Teratogenic effects include stillbirth, miscarriage, intrauterine growth restriction, and neurocognitive delay. A teratogen may affect the embryo at different stages of development, which is important in determining the type and extent of the damage. During blastocyst formation, the early...
Preventive Healthcare Services01:30

Preventive Healthcare Services

Preventive healthcare services keep people healthy via frequent check-ups, screening, and counseling. They primarily aid in disease prevention rather than treating an acute or chronic illness. Preventive treatment also keeps individuals productive and energetic, allowing them to work well into their retirement years. Examples of preventive care services include:
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: Overview and Drug Absorption01:23

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 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...

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Related Experiment Video

Updated: Jun 17, 2026

FISH for Pre-implantation Genetic Diagnosis
07:34

FISH for Pre-implantation Genetic Diagnosis

Published on: February 23, 2011

Prenatal diagnosis for paediatricians.

Anne Summers1

  • 1North York General Hospital, North York, Ontario. asummers@nygh.on.ca

Paediatrics & Child Health
|December 17, 2009
PubMed
Summary

Prenatal diagnostic tests like ultrasounds and genetic screenings are common for Canadian newborns. Pediatricians need to understand these tests to better support families with newborns, whether abnormalities were detected or missed.

Area of Science:

  • Obstetrics and Gynecology
  • Pediatrics
  • Medical Diagnostics

Background:

  • Prenatal diagnostic procedures are widely utilized in Canada, with most newborns exposed to some form of testing.
  • Multiple marker screening is not universally adopted across all Canadian provinces and territories.
  • Amniocentesis and prenatal ultrasound are standard diagnostic tools used nationwide.

Purpose of the Study:

  • To highlight the prevalence of prenatal diagnostic testing in Canada.
  • To inform pediatricians about the common prenatal tests performed on expectant mothers.
  • To emphasize the importance of understanding prenatal testing results for pediatric patient care.

Main Methods:

  • The study reviews the utilization rates of common prenatal diagnostic tests in Ontario and Canada.
Keywords:
AmniocentesisMultiple marker screeningPrenatal diagnosisPrenatal ultrasound

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  • It analyzes the types of prenatal screening and diagnostic procedures available to pregnant individuals.
  • Data on the number of women undergoing specific tests like multiple marker screening, amniocentesis, and ultrasound are presented.

    • Main Results:

    • Approximately 140,000 births occur annually in Ontario, with a significant percentage undergoing prenatal screening.
    • A substantial number of women undergo invasive procedures such as amniocentesis or chorion villus sampling.
    • Nearly all pregnant individuals have at least one prenatal ultrasound examination.

    Conclusions:

    • Pediatricians must be knowledgeable about prenatal diagnostic tests to effectively manage patient care.
    • Understanding prenatal test results aids in addressing parental concerns regarding detected abnormalities or unexpected diagnoses.
    • Familiarity with prenatal diagnostics enhances the pediatrician's ability to support families and understand their child's health context.