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Cardiopulmonary Anatomy & Physiolo...

7th Edition
Des Jardins + 1 other
ISBN: 9781337794909

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BuyFindarrow_forward

Cardiopulmonary Anatomy & Physiolo...

7th Edition
Des Jardins + 1 other
ISBN: 9781337794909
Textbook Problem

Case 2

A product of the time constants is the measurement called dynamic compliance, which is the change in volume of the lungs divided by the change in the transpulmonary pressure during the time for one breath. During an asthmatic episode, the patient's dynamic compliance (increases _________; decreases ___________________; remains thesame____________________).

Summary Introduction

To review:

The blank space in the statement, “A product of the time constants is the measurement called dynamic compliance, which is the change in volume of the lungs divided by the change in the transpulmonary pressure during the time for one breath. During an asthmatic episode, the patient’s dynamic compliance (increases___________; decreases _________; remains the same _____).”

Introduction:

Asthma is one of the chronic obstructive respiratory diseases caused by excessive secretion of mucus, which blocks the bronchial airways. Asthma patients have hyperinflated lungs due to blockage of airways by excessive bronchial secretions. The blockage of airways causes the change in the dynamic and bronchial ratios.

Please refer to Clinical Application Case-2 for further information.

Explanation

Dynamic compliance is a change in the volume of lungs divided by a change in the transpulmonary pressure during one breath. It is highly dissimilar to lung compliance. It is measured when there is no gas flow in the airway. Dynamic compliance is equal to lung compliance in the healthy lung. However, during asthmatic episodes, the obstruction in the air passage causes the ratio of dynamic compliance to lung compliance to decrease, due to increased breathing rate...

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