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Respiratory Assessment: Purpose and Indications01:19

Respiratory Assessment: Purpose and Indications

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Respiratory assessment is a cornerstone of nursing assessments, crucial for the early detection of patient deterioration. This evaluation transcends routine procedures, representing a critical skill nurses must master to ensure optimal patient care.
Objectives and Importance:
The primary goal of respiratory assessment is to evaluate patients at early risk of clinical deterioration. Since respiratory distress often precedes other signs of declining health, breathing patterns and sounds become a...
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Acute Respiratory Failure-II01:21

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Type I Respiratory Failure, or hypoxemic respiratory failure, occurs when the partial pressure of oxygen (PaO2) in arterial blood falls below 60 mmHg while breathing room air without a corresponding increase in arterial carbon dioxide levels (PaCO2). This condition highlights a significant impairment in the lungs' capacity to oxygenate the blood.
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Physiological Control of Respiration01:23

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Breathing, a seemingly passive process, is regulated by the respiratory center in the brainstem. This center coordinates the involuntary control of respirations, which means it occurs without conscious effort, ensuring a smooth and uninterrupted pattern.
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Teratogenicity01:07

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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...
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Hypoxia01:23

Hypoxia

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Related Experiment Video

Updated: Oct 1, 2025

Modeling Encephalopathy of Prematurity Using Prenatal Hypoxia-ischemia with Intra-amniotic Lipopolysaccharide in Rats
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Perinatal Hyperoxia and Developmental Consequences on the Lung-Brain Axis.

Stefanie Obst1,2, Josephine Herz1,2, Miguel A Alejandre Alcazar3,4,5

  • 1Department of Paediatrics I, Neonatology and Experimental Perinatal Neurosciences, University Hospital Essen, University Duisburg-Essen, 45147 Essen, Germany.

Oxidative Medicine and Cellular Longevity
|March 7, 2022
PubMed
Summary

Premature infants face risks of lung and brain damage from oxygen exposure. Understanding the lung-brain axis is crucial for developing new therapies to address these complications.

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Area of Science:

  • Neonatal Medicine
  • Developmental Neuroscience
  • Respiratory Medicine

Background:

  • Preterm birth affects 11.1% of newborns globally.
  • Neonatal intensive care improves survival but not long-term outcomes like bronchopulmonary dysplasia (BPD) and encephalopathy of prematurity (EoP).
  • Premature infants experience hyperoxia, increasing risks for impaired organ development, particularly the lungs and brain.

Purpose of the Study:

  • To review mechanisms of hyperoxia-induced neonatal lung and brain injury.
  • To explore common pathophysiological pathways linking lung and brain damage.
  • To discuss current and needed therapies for BPD and EoP, focusing on the lung-brain axis.

Main Methods:

  • Literature review of recent findings on hyperoxia-induced injury.
  • Analysis of pathophysiological mechanisms in lung and brain development.
  • Evaluation of existing and potential therapeutic strategies.

Main Results:

  • Hyperoxia causes oxidative stress and inflammation, contributing to lung growth restriction and neurodevelopmental deficits.
  • Studies have largely focused on either lung or brain injury, but an interaction is plausible given BPD's link to poor neurodevelopment.
  • Common pathways may link hyperoxia-induced injury in both organs.

Conclusions:

  • There is an urgent need for better understanding of hyperoxia's effects on the lung-brain axis.
  • Novel multimodal therapies targeting both lung and brain complications are required.
  • Pharmacological and regenerative cell-based treatments show promise but require further development.