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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

According to the P co 2 /HCO 3 - /pH nomogram shown in Figure 7-15, if the P co 2 reported is 55 mm Hg at a time when the pH is 7.14 and the HCO 3 - is 18 mEq/L , what acid-base balance disturbance would be present?

Summary Introduction

To review:

The acid-base balance disturbance with the help of PCO2 /HCO3-/pH nomogram given that PCO2 is 55 mmHg at a time when the pH is 7.14 and the HCO3- is 18 mEq/L.

Introduction:

The normal ratio of HCO3- (bicarbonate ions) and H2CO3 (carbonic acid) in blood is 20:1. It means that for every H2CO3 molecule, 20 bicarbonate ions are formed to regulate the normal pH (potential of hydrogen) of the blood. The PCO2/HCO3-/pH nomogram is used to identify the acid-base balance disturbance in the body.

Explanation

The PCO2/HCO3-/pH nomogram indicates the combined metabolic and respiratory acidosis for the reported value of PCO2 as 55 mmHg, pH 7.14, and HCO3- 18 mEq/L. The readings of pH, HCO3-, and PCO2 intersect at the orange-colored area of the nomogram, which depict that both the metabolic and respiratory acidosis are present

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