newborn and early childhood respiratory disorders rt 265 chapter 33
TRANSCRIPT
Newborn and Early Childhood
Respiratory DisordersRT 265
Chapter 33
Childhood Definitions Neonate
Birth to 1 month (first 28 days)
Infant 1 month to 1 year (some texts use until 3rd
year)
Pediatric 1 year to 12 years (some texts use until 21st
year)
Development of the Respiratory System
Lung Growth
Transition at Birth Clear lung fluid
High transpulmonary pressures to open lungs
Breathing must be stimulated
Pulmonary vasodilation, decreased PVR
Constriction of the ductus arteriosus
Closure of umbilical blood supply closes ductus venousus
Increased SVR
Closure of the foramen ovale
Pathophysiological Differences
Flexible compliant thorax
Low lung compliance
High negative intrapleural pressures during inspiration
Clinical Manifestations of
Distress Retractions
Flaring nostrils
Expiratory grunting
Apnea of prematurity
Persistent pulmonary hypertension of the newborn
Arterial Blood Gases Acute alveolar hypoventilation with
hypoxemia
Acute ventilatory failure with hypoxemia
Low oxygen levels due to …… Pulmonary shunting and venous admixture
PPHN
Infant fatigue
Apgar Score Scores:
0-3 – severe distress
4-6 – moderate distress
7-10 – absence of difficulty in adjusting to extrauterine life
The 5 minute score should be higher than the 1 minute score
Pediatric Patients Not “little adults”
Differences in physiology affect drug dosing
Requires equipment and techniques tailored to size, weight, and age
Newborn and Pediatric Assessment
Systematic collection of clinical data
Assessment of the data
Formulation of an appropriate treatment plan
Utilizing: Objective data
Assessments
Treatment plans
Apgar Score