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Related Concept Videos

Acute Respiratory Failure-II01:21

Acute Respiratory Failure-II

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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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Fetal Circulation01:14

Fetal Circulation

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Fetal circulation is a unique system that facilitates the exchange of gases, nutrients, and waste products between the developing fetus and the mother. This intricate process takes place through a special organ called the placenta.
Two umbilical arteries transport blood from the fetus to the placenta. At the placenta, the blood absorbs oxygen and nutrients while simultaneously eliminating waste products. This oxygen-enriched and nutrient-rich blood then returns to the fetus through one...
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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:
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Oxygen Delivering System II: Venturi Mask and Transtracheal Oxygen01:16

Oxygen Delivering System II: Venturi Mask and Transtracheal Oxygen

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Oxygen therapy is a pivotal aspect of medical care, particularly for patients with respiratory ailments. Two prominent oxygen-delivering systems include the Venturi mask and the transtracheal oxygen catheter.
Venturi Mask
The Venturi mask, named after the Venturi effect, is designed to deliver precise oxygen concentrations. It consists of a large tube with an oxygen inlet that narrows down, causing a pressure drop that pulls air in through adjustable side ports. The mask is a lightweight,...
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Oxygen Requirements and Growth Patterns01:29

Oxygen Requirements and Growth Patterns

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Microorganisms exhibit diverse oxygen requirements and growth patterns driven by their metabolic strategies and environmental adaptations. Oxygen, while essential for many organisms, can also be toxic under certain conditions, shaping how microorganisms grow and survive.Oxygen Requirements of MicroorganismsMicroorganisms are classified based on their ability to use or tolerate oxygen:● Obligate aerobes like Mycobacterium tuberculosis need oxygen for energy production, as it serves as the...
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Oxygen Transport in the Blood01:27

Oxygen Transport in the Blood

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Hemoglobin (Hb) is a crucial molecule in the human body, consisting of four polypeptide chains, each bound to an iron-containing heme group. This unique structure enables hemoglobin to bind to oxygen, with each molecule capable of combining with four molecules of oxygen, leading to rapid and reversible oxygen loading. When fully loaded with oxygen, it is called oxyhemoglobin, while hemoglobin that has released oxygen is called reduced hemoglobin or deoxyhemoglobin. As hemoglobin binds oxygen,...
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Related Experiment Video

Updated: Apr 18, 2026

Development of a Neonatal Piglet Acute Lung Injury Model Recreating the Early Environment of Preterm Infant Lungs
08:58

Development of a Neonatal Piglet Acute Lung Injury Model Recreating the Early Environment of Preterm Infant Lungs

Published on: October 31, 2025

858

Perinatal oxygen in the developing lung.

Elizabeth R Vogel1, Rodney D Britt, Mari Charisse Trinidad

  • 1a Department of Anesthesiology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA.

Canadian Journal of Physiology and Pharmacology
|January 17, 2015
PubMed
Summary
This summary is machine-generated.

Supplemental oxygen during the perinatal period significantly impacts preterm infant lung development. Both high and low oxygen levels can lead to long-term lung disease, affecting pulmonary health into adulthood.

Keywords:
asthmaasthmebronchopulmonary dysplasiadysplasie broncho-pulmonairehyperoxiahyperoxiehypoxiahypoxieneonatalnéonatal

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Area of Science:

  • Neonatology
  • Pediatric Pulmonology
  • Developmental Biology

Background:

  • Pediatric lung diseases like bronchopulmonary dysplasia, wheezing, and asthma are significant causes of illness and death in premature infants.
  • Pulmonary outcomes in preterm infants are influenced by prenatal inflammation, NICU interventions, and environmental factors.
  • Perinatal supplemental oxygen administration is a critical factor affecting lung development and health.

Purpose of the Study:

  • To summarize the current understanding of how oxygen affects the developing preterm lung.
  • To explore how both low and high oxygen exposures during the perinatal period may predispose infants to pulmonary disease.
  • To highlight the importance of understanding these mechanisms for improving care and outcomes in vulnerable infants.

Main Methods:

  • Review of current scientific evidence on oxygen's effects on lung development.
  • Analysis of the impact of hyperoxic and hypoxic insults on the preterm lung.
  • Synthesis of findings related to short-term and long-term pulmonary consequences.

Main Results:

  • The preterm lung, adapted to a hypoxic environment, is vulnerable to hyperoxic injury from room air.
  • Both excessive oxygen (hyperoxia) and insufficient oxygen (hypoxia) can cause pulmonary damage and disease.
  • These oxygen-related effects can have lasting consequences, potentially leading to lung disease extending into adulthood.

Conclusions:

  • Understanding the precise effects of varying oxygen concentrations on lung development is crucial.
  • Optimizing oxygen management in preterm infants may prevent long-term pulmonary morbidity.
  • Further research into the mechanisms underlying oxygen's impact is needed to improve clinical care and outcomes.