Full article: Assessment of Work of Breathing in Patients with Acute Exacerbations of Chronic Obstructive Pulmonary Disease
![Chronic Obstructive Pulmonary Disease (COPD) - Pulmonary Disorders - Merck Manuals Professional Edition Chronic Obstructive Pulmonary Disease (COPD) - Pulmonary Disorders - Merck Manuals Professional Edition](https://www.merckmanuals.com/-/media/manual/professional/images/c/o/p/copd_chest_xray_high.jpg?mw=350&thn=0&sc_lang=en)
Chronic Obstructive Pulmonary Disease (COPD) - Pulmonary Disorders - Merck Manuals Professional Edition
![Jorge Cortés on Twitter: "🔴When this occurs, the inspiratory contraction of the flattened diaphragm decreases the transverse diameter of the lower rib cage.🔴 Lemyze M, Bart F. Hoover sign. CMAJ. 2011;183:e133 https://t.co/4CBixbKY6x" / Jorge Cortés on Twitter: "🔴When this occurs, the inspiratory contraction of the flattened diaphragm decreases the transverse diameter of the lower rib cage.🔴 Lemyze M, Bart F. Hoover sign. CMAJ. 2011;183:e133 https://t.co/4CBixbKY6x" /](https://pbs.twimg.com/media/EbUJNb5XQAEIKGl.jpg)
Jorge Cortés on Twitter: "🔴When this occurs, the inspiratory contraction of the flattened diaphragm decreases the transverse diameter of the lower rib cage.🔴 Lemyze M, Bart F. Hoover sign. CMAJ. 2011;183:e133 https://t.co/4CBixbKY6x" /
![Chronic Obstructive Pulmonary Disease (COPD) - Pulmonary Disorders - Merck Manuals Professional Edition Chronic Obstructive Pulmonary Disease (COPD) - Pulmonary Disorders - Merck Manuals Professional Edition](https://www.merckmanuals.com/-/media/manual/professional/images/m/1/5/m1500338_copd_with_bullae_x-ray_science_photo_library_high.jpg?mw=350&thn=0&sc_lang=en)
Chronic Obstructive Pulmonary Disease (COPD) - Pulmonary Disorders - Merck Manuals Professional Edition
Facilitator Version CHRONIC OBSTRUCTIVE PULMONARY DISEASE: DIAGNOSIS, CLASSIFICATION, AND TREATMENT Authors: Christopher Marino
![PDF] Altered Thoracic Cage Dimensions in Patients with Chronic Obstructive Pulmonary Disease | Semantic Scholar PDF] Altered Thoracic Cage Dimensions in Patients with Chronic Obstructive Pulmonary Disease | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/7abe9243419c0600b3b34d9572e821828aa81727/3-Figure1-1.png)