Pediatrics lec 1
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Questions and Answers

What is the primary objective of therapeutic drug monitoring (TDM) in pediatrics?

  • To diagnose sepsis in neonates
  • To identify potential drug-drug interactions
  • To monitor the pharmacokinetics of medications in pediatric patients (correct)
  • To determine the optimal dosage of antibiotics
  • How do the pharmacokinetics of absorption, distribution, metabolism, and elimination differ between children and adults?

  • Children have slower absorption and faster elimination rates compared to adults
  • Children have similar pharmacokinetic profiles to adults
  • Pharmacokinetics are unaffected by age
  • Children have faster absorption and slower elimination rates compared to adults (correct)
  • What is the correct dose of tobramycin for a 4 kg neonatal patient based on the adult dose of 1mg/kg IV q8h?

  • 1 mg IV q8h
  • 2 mg IV q8h (correct)
  • 4 mg IV q8h
  • 0.5 mg IV q8h
  • Why is it crucial to consider age when determining the dosage of medications in pediatric patients?

    <p>To minimize the risk of adverse effects and optimize therapeutic outcomes</p> Signup and view all the answers

    What additional information is necessary to determine the correct dose of tobramycin for the 8-day-old neonatal patient?

    <p>The patient's kidney function</p> Signup and view all the answers

    Why might the adult resident's suggested dose of tobramycin (4 mg IV q8h) be incorrect for the 4 kg neonatal patient?

    <p>The dose is too high for the patient's age</p> Signup and view all the answers

    Why would neonates require a higher dose of tobramycin to achieve similar peaks as adults?

    <p>Due to their higher volume of distribution</p> Signup and view all the answers

    What is the primary reason why the MD's suggested dose of tobramycin for the neonate is incorrect?

    <p>The dose is too low</p> Signup and view all the answers

    What is a key principle in pediatric drug dosing?

    <p>Children are not little adults</p> Signup and view all the answers

    What is an important consideration when dosing antibiotics in neonates?

    <p>The antibiotic's volume of distribution</p> Signup and view all the answers

    Why is Therapeutic Drug Monitoring (TDM) important in pediatric patients?

    <p>To ensure optimal drug concentrations</p> Signup and view all the answers

    What is a challenge in pediatric drug dosing?

    <p>Dosing is complex and needs to account for age-related changes</p> Signup and view all the answers

    Why is it important to use pediatric-specific dosing guidelines?

    <p>Because pediatric patients have different pharmacokinetics</p> Signup and view all the answers

    What is a key difference between adult and neonatal pharmacology?

    <p>Neonates have a lower body fat content</p> Signup and view all the answers

    What is the primary reason for using different dosing categories in pediatrics?

    <p>Because children have different pharmacokinetics than adults</p> Signup and view all the answers

    What is the age range for a preschool child?

    <p>2-5 years</p> Signup and view all the answers

    What is the correct calculation for post-menstrual age (PMA)?

    <p>PMA = GA + PNA</p> Signup and view all the answers

    What is the primary concern with using the adult dose of tobramycin for an 8-day-old neonate?

    <p>The dose is based on weight, but not adjusted for age</p> Signup and view all the answers

    What is the correct category for an 8-day-old baby?

    <p>Neonate</p> Signup and view all the answers

    What additional information is needed to determine the correct dose of tobramycin for an 8-day-old neonate?

    <p>The baby's gestational age and postnatal age</p> Signup and view all the answers

    Why is it important to consider prematurity in pediatric dosing?

    <p>Because premature babies have different pharmacokinetics</p> Signup and view all the answers

    What is the correct dose of tobramycin for an 8-day-old neonate based on the adult dose of 1mg/kg IV q8h?

    <p>The dose cannot be determined from the information provided</p> Signup and view all the answers

    Study Notes

    Pediatrics: Age Definitions

    • Neonate: 0-1 month
    • Infant: 1 month-1 year
    • Child: 1-11 years
    • Child can be further categorized as:
      • Toddler: >12 months-23 months
      • Preschool child: 2-5 years
      • School age child: 6-11 years
    • Adolescent: 12-18 years

    Dosing in Pediatrics

    • Dosing can be based on:
      • Weight
      • Age
      • Prematurity (post-menstrual age)
      • Body surface area
      • A combination of the above

    Importance of Age Definitions

    • Dosing in pediatrics is complex and needs to account for drug disposition changes with age
    • Children are not little adults

    Volume of Distribution (Vd)

    • Adults: fat content ~13%
    • Neonates: lower body fat content, need a higher dose to achieve similar peaks

    Pharmacokinetic Considerations

    • Differences in pharmacokinetics between children and adults:
      • Absorption
      • Distribution
      • Metabolism
      • Elimination

    Therapeutic Drug Monitoring (TDM)

    • Role of TDM in pediatrics: important for optimal dosing and patient care

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    Related Documents

    Pediatric Principles 1 2024 PDF

    Description

    Learn about the different age categories in pediatrics, including neonate, infant, child, toddler, and adolescent. Understand the specific age ranges for each category.

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