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Definition : a single, <3 cm discrete, well-marginated, rounded opacity, surrounded by normal lung, with no lymphadenopathy or pleura...

Chronic obstructive pulmonary disease (COPD) is characterized by chronic airflow limitation due to impedance to expiratory airflow, muco...

Definition and Pathophysiology • Expectoration of blood or blood-streaked sputum • Massive hemoptysis: ~>600 mL/24–48 h; gas exchan...

Acute severe asthma (also referred to in Latin as status asthmaticus, or asthmatic status) is an acute exacerbation of asthma that doe...

Make an initial assessment of the severity of acute asthma based upon a combination of clinical features,  peak flow measurement and...

The normal adult respiratory rate is 11–18/min, with a tidal volume of 400–800mL. Acute dyspnoea That is difficult or labored breathing ...

Definition  Croup or viral laryngotracheobronchitis is an acute inflammation of the entire airway, mainly in the glottis and subglotti...

A lung abscess is an infection accompanied by pus accumulation and tissue destruction. The abscess may be putrid (due to anaerobic bac...

Definition: A pulmonary embolism results from the migration of venous thrombi from the systemic veins to pulmonary arterial system, re...

The goal of therapy is to prevent further embolic episodes, and heparin is the initial drug of choice for accomplishing this. First,...

Haemoptysis (Blood In Sputum) may be the chief or sole complaint of patients presenting to the emergency department or their family doc...

Also called commonly as the flu, influenza is an acute, highly contagious infection of the respiratory tract that results from three t...

Introduction An acute bronchopneumonia, legionnaires’ disease is produced by a fastidious, gram-negative bacillus. This disease may o...

Introduction A form of pulmonary edema that causes acute respiratory failure, acute respiratory distress syndrome (ARDS, shock lung, ...

Cystic fibrosis is a genetic disorder that is inherited in an autosomal recessive pattern and is characterized by a defective transpo...

Pleural effusion is a condition in which there is abnormal fluid accumulation in the layers of tissues that line the lung and the ches...