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Related Concept Videos

Pneumonia III: Complications and Assessment01:30

Pneumonia III: Complications and Assessment

Pneumonia poses the potential for numerous complications that warrant consideration. These complications include the following:
Acute Respiratory Failure-III01:30

Acute Respiratory Failure-III

Hypercapnic respiratory failure, also known as Type 2 or ventilatory respiratory failure, is a severe condition characterized by the body's inability to effectively remove carbon dioxide (CO2) from the bloodstream. It leads to an arterial CO2 pressure (PaCO2) exceeding 45 mmHg and a blood pH above 7.35. This situation indicates that the body's ventilatory demand, or the ventilation needed to maintain normal PaCO2 levels, surpasses its supply or the maximum gas flow achievable without causing...
Acute Respiratory Failure-II01:21

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:
Pulmonary Embolism II: Diagnostic Studies and Interprofessional Care01:29

Pulmonary Embolism II: Diagnostic Studies and Interprofessional Care

Diagnosing Pulmonary EmbolismDiagnosing pulmonary embolism (PE) involves clinical assessment and advanced imaging tests. The preferred diagnostic tool is the spiral (helical) CT scan or CT angiography (CTA), which uses intravenous contrast media to visualize the pulmonary vasculature and identify emboli.A ventilation-perfusion (V/Q) scan is an alternative for patients unable to receive contrast media. This scan includes both perfusion and ventilation scanning. Perfusion scanning involves...
Acute Respiratory Failure-I01:21

Acute Respiratory Failure-I

Acute respiratory failure is a condition characterized by the inability of the lungs to perform their primary function: gas exchange. This failure leads to insufficient oxygen levels (hypoxemia) in the blood, elevated carbon dioxide levels (hypercapnia), or both, causing critical impairment in organ function.
Definition: It is defined by specific criteria based on blood gas measurements. Hypoxemia happens when the partial pressure of oxygen (PaO2) falls below 60 mmHg. At the same time,...
Pneumonia I: Introduction01:29

Pneumonia I: Introduction

Pneumonia is an infection of the lower respiratory tract that leads to inflammation of the lung parenchyma, often resulting in the accumulation of inflammatory exudate in the alveoli and airways. Unlike the watery, low-protein fluid exudate in pulmonary edema, the exudate in this case is a thick fluid rich in immune cells, proteins, and debris produced during infection and inflammation.This impairs gas exchange and can lead to consolidation of lung tissue. The infection may be caused by a...

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Related Experiment Video

Updated: Jun 3, 2026

Halogenated Agent Delivery in Porcine Model of Acute Respiratory Distress Syndrome via an Intensive Care Unit Type Device
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Published on: September 24, 2020

Pulmonary vasculitis in the intensive care unit.

Jesus Diaz1, Kenneth T Calamia, Augustine S Lee

  • 1Department of Internal Medicine, Division of Pulmonary Medicine, Mayo Clinic, Jacksonville, FL, USA.

Journal of Intensive Care Medicine
|April 6, 2011
PubMed
Summary

Pulmonary vasculitis in the ICU presents a diagnostic challenge, often mimicking other critical illnesses. Early suspicion and advanced strategies are key for timely diagnosis and effective treatment of this rare condition.

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Published on: September 7, 2016

Area of Science:

  • Critical Care Medicine
  • Rheumatology
  • Pulmonology

Background:

  • Pulmonary vasculitis is a rare condition that can present in intensive care units (ICUs).
  • Its presentation often overlaps with common critical illnesses, potentially delaying diagnosis.
  • Diffuse alveolar hemorrhage (DAH) is a key indicator, but hemoptysis may be absent or misdiagnosed.

Purpose of the Study:

  • To review the clinical presentations of pulmonary vasculitis in critically ill patients.
  • To discuss current diagnostic strategies for pulmonary vasculitis in the ICU.
  • To outline effective therapeutic options for patients with pulmonary vasculitis.

Main Methods:

  • Review of clinical presentations, diagnostic approaches, and treatment options.
  • Focus on critically ill patients admitted to the intensive care unit.
  • Synthesis of recent advances in the past decade.

Main Results:

  • Pulmonary vasculitis diagnosis in the ICU can be delayed due to overlapping symptoms and mimicry of other diseases.
  • A high index of suspicion is crucial for prompt diagnosis.
  • Advances in diagnostics and therapeutics have improved outcomes.

Conclusions:

  • Pulmonary vasculitis in the ICU requires a high index of suspicion for timely diagnosis.
  • Effective management relies on current diagnostic and therapeutic advancements.
  • This review provides an overview for clinicians managing these complex cases.