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Related Concept Videos

Pulmonary Embolism I: Introduction01:29

Pulmonary Embolism I: Introduction

Pulmonary embolism (PE) occurs when a thrombus, fat or air embolus, amniotic fluid, or tumor tissue blocks one or more pulmonary arteries. These blockages originate in the venous system or the right side of the heart.EtiologyPE primarily arises from deep vein thrombosis (DVT) and other hypercoagulable states, such as inherited thrombophilias. Additional etiological factors include venous stasis, commonly seen in obesity, and endothelial injury from surgery and trauma. Less common causes include...
Pulmonary Embolism I: Introduction01:19

Pulmonary Embolism I: Introduction

A blood clot, or thrombus, is a semi-solid mass composed of fibrin, platelets, and red blood cells. When it forms within a vessel, it can obstruct blood flow, known as thrombosis. If part of the clot detaches, it becomes an embolus that can travel and block distant vessels. When this occurs in the pulmonary arteries, it causes a condition known as pulmonary embolism (PE).Origin and ImpactMost often, the embolus originates from a thrombus in the deep veins of the lower limbs, a condition called...
Epistaxis01:30

Epistaxis

Epistaxis, or nosebleeds, occurs when small, swollen blood vessels in the nasal mucous membrane rupture. Typically, the anterior septum is the primary site of occurrence.
Etiology
Possible causes of this condition include high blood pressure, trauma, low humidity, upper respiratory tract infections, allergies, foreign bodies, nasal inhalation of corticosteroids or illicit drugs, excessive use of decongestant nasal sprays, facial or nasal surgery, anatomic malformation, tumors, or systemic...
Chronic Obstructive Pulmonary Disease-III: Symptoms and Complications.01:25

Chronic Obstructive Pulmonary Disease-III: Symptoms and Complications.

Understanding the variety of primary symptoms and systemic complications that characterize chronic obstructive pulmonary disease (COPD) is crucial for healthcare professionals.
Symptoms of COPD can be classified as primary or systemic. Primary symptoms relate to reduced airflow, while systemic or extrapulmonary symptoms relate to COPD's broader impact on the body.
Primary Symptoms of COPD:
Other Pulmonary Disorders01:17

Other Pulmonary Disorders

Respiratory disorders encompass a range of conditions with varying levels of severity. Asthma, marked by chronic airway inflammation and hypersensitivity, is one such condition. It can lead to airway obstruction due to factors like bronchial spasms, mucosal edema, increased mucus secretion, or epithelial damage. Asthma triggers are diverse, ranging from allergens to emotional upset, and treatment focuses on both immediate relief through bronchodilators and long-term inflammation suppression.
Chronic Obstructive Pulmonary Disease IV: Clinical Manifestations01:19

Chronic Obstructive Pulmonary Disease IV: Clinical Manifestations

Chronic Obstructive Pulmonary Disease, or COPD, is a long-term condition marked by persistent and only partially reversible airflow limitation. It involves two overlapping conditions—chronic bronchitis and emphysema—which often co-appear but differ in dominant symptoms and underlying mechanisms.Chronic Bronchitis FeaturesChronic bronchitis presents with a persistent productive cough and thick, sometimes purulent mucus due to airway inflammation, enlarged mucus glands, and goblet cell...

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Related Experiment Video

Updated: Jun 3, 2026

Oropharyngeal Administration of Bleomycin in the Murine Model of Pulmonary Fibrosis
06:03

Oropharyngeal Administration of Bleomycin in the Murine Model of Pulmonary Fibrosis

Published on: May 9, 2025

[Hemoptysis].

Kari Liippo1, Tuula Vasankari

  • 1TYKS:n keuhkosairauksien klinikka PL 52, 20521 Turku.

Duodecim; Laaketieteellinen Aikakauskirja
|March 30, 2011
PubMed
Summary

Most cases of hemoptysis, or coughing up blood, stem from lung infections or cancer. Massive hemoptysis is life-threatening, requiring immediate intervention and bronchoscopy for diagnosis and treatment.

Area of Science:

  • Pulmonology
  • Internal Medicine

Context:

  • Hemoptysis, the coughing of blood, presents with diverse etiologies including infections, bronchiectasis, lung cancer, and vascular disorders.
  • The volume of bleeding ranges from minor streaks to life-threatening massive pulmonary hemorrhage, significantly influencing diagnostic and therapeutic strategies.

Purpose:

  • To outline the common causes, clinical presentation, and management principles of hemoptysis.
  • To emphasize the critical role of bronchoscopy in the investigation and treatment of hemoptysis, particularly in acute settings.

Summary:

  • Common causes of hemoptysis include lung infections, bronchiectasis, lung cancer, and pulmonary vascular disorders.
  • The severity of bleeding dictates the urgency and type of medical intervention.
  • Bronchoscopy is the primary diagnostic and therapeutic tool for hemoptysis in a hospital setting, especially for massive hemorrhage.

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A Refined Aerosol-Based Intratracheal Bleomycin Delivery Method for Reproducible and Minimally Invasive Mouse Models of Pulmonary Fibrosis
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A Refined Aerosol-Based Intratracheal Bleomycin Delivery Method for Reproducible and Minimally Invasive Mouse Models of Pulmonary Fibrosis

Published on: January 16, 2026

Related Experiment Videos

Last Updated: Jun 3, 2026

Oropharyngeal Administration of Bleomycin in the Murine Model of Pulmonary Fibrosis
06:03

Oropharyngeal Administration of Bleomycin in the Murine Model of Pulmonary Fibrosis

Published on: May 9, 2025

A Refined Aerosol-Based Intratracheal Bleomycin Delivery Method for Reproducible and Minimally Invasive Mouse Models of Pulmonary Fibrosis
05:45

A Refined Aerosol-Based Intratracheal Bleomycin Delivery Method for Reproducible and Minimally Invasive Mouse Models of Pulmonary Fibrosis

Published on: January 16, 2026

Impact:

  • Provides a concise overview of hemoptysis management for clinicians.
  • Highlights the immediate life-threatening nature of massive hemoptysis and the importance of prompt bronchoscopic evaluation.
  • Aids in understanding the diagnostic pathway for patients presenting with hemoptysis.