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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

The patient's condition was compromised by the presence of a decreased pH (7.25) and an increased ( Pa co 2 )   ( 72 mm Hg ) , which caused the oxyhemoglobin dissociation curve to shift to the____

Summary Introduction

To review:

The shift of the oxyhemoglobin dissociation curve due to decreased pH (potential of hydrogen) and increased Paco2.

Introduction:

An 18-year-old woman came to the hospital due to respiratory distress. She had suffered from asthma all her life. She appeared fatigued and cyanotic and used her accessory muscles for inspiration. She was in acute ventilatory failure with severe hypoxemia. Her blood pressure was 177/110 mm Hg, the partial pressure of oxygen in arterial blood (Pao2) was 27 mm Hg, and oxygen saturation (Sao2) was 42%.

Please refer to Clinical Application Case- 2.

Explanation

In case of severe asthma, the lungs become overinflated (ballooning) and there is respiratory depression (decrease in the respiratory rate). Hyperinflation takes place because the gas is unable to leave the lungs during exhalation and this obstructs the air from entering during inspiration...

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