Respiratory Diseases 1&2 PDF
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Uploaded by GentleGreekArt
Richard Cook
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Summary
This document discusses respiratory diseases, focusing on peak expiratory flow rate (PEFR), emphysema, and bronchiectasis. It explains that PEFR measures air expelled from the lungs, and that conditions like emphysema damage lung air sacs, while bronchiectasis widens airways, leading to mucus buildup and vulnerability to infection.
Full Transcript
Respiratory Diseases 1&2 Prof. Richard Cook Hypersecretion Peak Expiratory Flow Rate. Background. Peak expiratory flow rate (PEFR) is the volume of air forcefully expelled from the lungs in one quick exhalation, and is a reliable indicator of ventilation adequacy as well as airflow obstruction. Emph...
Respiratory Diseases 1&2 Prof. Richard Cook Hypersecretion Peak Expiratory Flow Rate. Background. Peak expiratory flow rate (PEFR) is the volume of air forcefully expelled from the lungs in one quick exhalation, and is a reliable indicator of ventilation adequacy as well as airflow obstruction. Emphysema is a lung condition that causes shortness of breath. In people with emphysema, the air sacs in the lungs (alveoli) are damaged. Over time, the inner walls of the air sacs weaken and rupture — creating larger air spaces instead of many small ones Bronchiectasis is a long-term condition where the airways of the lungs become widened, leading to a build-up of excess mucus that can make the lungs more vulnerable to infection.
