Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Hypoxia

Hypoxia

Hypoxia is a medical condition characterized by an inadequate oxygen supply to body tissues. It typically manifests as a bluish discoloration of the skin and mucosae, especially in fair-skinned individuals, when hemoglobin (Hb) saturation drops below 75%.
Types of Hypoxia
There are four primary types of hypoxia, each resulting from a different cause:
1. Anemic hypoxia: This type occurs due to insufficient oxygen delivery caused by a lack of red blood cells (RBCs) or RBCs with abnormal or...

Special considerations while measuring oxygen saturation

Special considerations while measuring oxygen saturation

Assessing respiratory rate concurrently with pulse measurement is fundamental to patient care, providing valuable insights into the patient's respiratory function. The normal breathing rate for an adult usually falls within a normal range of 12 to 20 breaths per minute. Abnormal respiratory rates can signal underlying health conditions or the need for immediate intervention.
Ensuring accuracy in vital sign recordings while prioritizing patient comfort and minimizing anxiety is...

Acute Respiratory Failure-II

Acute Respiratory Failure-II

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.
The underlying physiological abnormalities that contribute to hypoxemic respiratory failure include:

Hyperpnea and Hyperventilation

Hyperpnea and Hyperventilation

Hyperventilation refers to a higher-than-normal rate and depth of breathing, often associated with anxiety attacks. This excessive breathing surpasses the body's need to expel CO2, leading to a condition known as hypocapnia - an unusually low level of carbon dioxide in the blood. Hypocapnia can constrict cerebral blood vessels, reducing blood flow to the brain, which may result in dizziness or fainting. Early signs include tingling and muscle spasms in the hands and face, caused by falling...

Acute Respiratory Failure-IV

Acute Respiratory Failure-IV

Respiratory failure can manifest suddenly or gradually, characterized by a rapid decline in PaO2 and a rapid rise in PaCO2. This situation indicates a severe respiratory problem that may quickly become a life-threatening emergency. One of the early signs of hypoxemic Acute Respiratory Failure (ARF) is a change in mental status due to the brain's sensitivity to oxygen levels and changes in acid-base balance. Symptoms such as restlessness, confusion, and agitation suggest inadequate oxygen...

Respiratory Assessment: Purpose and Indications

Respiratory Assessment: Purpose and Indications

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...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Seminoperitoneum in a Dog with a History of a Vasectomy: Case Report.

Journal of the American Animal Hospital Association·2024

Same author

Thermographic imaging in a dog with macroglossia from an encircling, strangulating lingual linear foreign body.

Topics in companion animal medicine·2021

Same author

Clinical pharmacokinetics and outcomes of oral fluconazole therapy in dogs and cats with naturally occurring fungal disease.

Journal of veterinary pharmacology and therapeutics·2020

Same author

The red and the black: China's social credit experiment as a total test environment.

The British journal of sociology·2020

Same author

Temporary abdominal packing for management of persistent hemorrhage after liver lobectomy in three dogs with hepatic neoplasia.

Journal of veterinary emergency and critical care (San Antonio, Tex. : 2001)·2019

Same author

Prospective study evaluating the incidence of bacteraemia and bacteruria in afebrile and febrile neutropaenic dogs undergoing chemotherapy.

Veterinary medicine and science·2017

Search research articles

Related Experiment Video

Updated: Mar 10, 2026

A Model to Simulate Clinically Relevant Hypoxia in Humans

A Model to Simulate Clinically Relevant Hypoxia in Humans

Published on: December 22, 2016

A Quick Reference on Hypoxemia.

Jonathan Bach¹

¹Department of Medical Sciences, University of Wisconsin-Madison, 2015 Linden Drive, Madison, WI 53706, USA.

The Veterinary Clinics of North America. Small Animal Practice

|December 6, 2016

Summary

This summary is machine-generated.

Learn how to calculate the alveolar-arterial gas gradient to diagnose hypoxemia. This guide covers arterial blood gas analysis and clinical strategies for respiratory disease management.

Keywords:

Blood gas Pulse oximetry Respiratory distress Ventilation

More Related Videos

Author Spotlight: Exploring Venous Waveforms for Non-Invasive Respiratory Monitoring in Pigs

Author Spotlight: Exploring Venous Waveforms for Non-Invasive Respiratory Monitoring in Pigs

Published on: March 8, 2024

A Swine Model of Neonatal Asphyxia

A Swine Model of Neonatal Asphyxia

Published on: October 11, 2011

Related Experiment Videos

Last Updated: Mar 10, 2026

A Model to Simulate Clinically Relevant Hypoxia in Humans

A Model to Simulate Clinically Relevant Hypoxia in Humans

Published on: December 22, 2016

Author Spotlight: Exploring Venous Waveforms for Non-Invasive Respiratory Monitoring in Pigs

Author Spotlight: Exploring Venous Waveforms for Non-Invasive Respiratory Monitoring in Pigs

Published on: March 8, 2024

A Swine Model of Neonatal Asphyxia

A Swine Model of Neonatal Asphyxia

Published on: October 11, 2011

Area of Science:

Pulmonary Medicine
Respiratory Physiology

Background:

Hypoxemia is a common clinical problem requiring accurate diagnosis.
Understanding gas exchange is crucial for managing respiratory conditions.

Purpose of the Study:

To detail the calculation of the alveolar-arterial gas gradient.
To explain its clinical utility in diagnosing hypoxemia.
To outline the diagnostic and therapeutic approach to respiratory diseases.

Main Methods:

Calculation of the alveolar-arterial gradient using blood gas data.
Analysis of arterial blood gases (ABGs).
Clinical evaluation for respiratory disease.

Main Results:

The alveolar-arterial gradient aids in differentiating causes of hypoxemia.
ABG analysis provides key insights into respiratory function.
A systematic clinical approach facilitates diagnosis and treatment.

Conclusions:

The alveolar-arterial gas gradient is a valuable tool in clinical practice.
Effective management of hypoxemia relies on accurate ABG interpretation and clinical assessment.
This article provides a framework for diagnosing and treating respiratory disease.