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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 1

The fact that the respiratory therapist obtained the same bedside spirometry results on the second test demonstrated the presence of which three physiologic effects?

Summary Introduction

To review:

The three physiologic effects that would be demonstrated if the respiratory therapist obtained the same bedside spirometry results.

Introduction:

Spirometry measures the function of lungs, and the amount and speed of air entering and leaving the lungs. It is one of the most common pulmonary function tests. It helps in the assessment of diseases, such as cystic fibrosis, pulmonary fibrosis, asthma, and COPD (chronic obstructive pulmonary disorders).

Please refer to Clinical Application Case-1 for further information.

Explanation

In the given case, it is shown that the pulmonary mechanism of the patient can act as a clinical monitor during a forced expiratory maneuver. The personal best PEFR, which is determined by the patient at home, helps to evaluate the severity of the asthma attack. The same bedside spirometry results were obtained by the respiratory therapist.

As a consequence of the compression and decompression of the lungs, changes in the alveolar pressure take place. During the last 70% of the FVC (forced vital capacity) maneuver, the flow rate is effort independent...

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