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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

The normal arterial HCO 3 - range is

A .        18-22 mEq/L B .        22-28 mEq/L C .        28-35 mEq/L D .        35-45 mEq/L

Summary Introduction

Introduction:

Arterial blood gas (ABG) is an important part of representing the clinical status of a patient. It measures the pH and gas pressure values for an artery. This means the acidity level and the oxygen and carbon dioxide levels are known with the help of the ABG test. This indirectly affects the levels of oxygen saturation and arterial bicarbonate (HCO3-) in the arterial blood.

Explanation

Justification/Explanation for correct answer:

Option (b) is, ‘22-28 mEq/L.’ The arterial bicarbonate level along with pH and PCO2 (partial pressure of carbon dioxide) helps to comprehend the blood gas and the effective treatment needed if these do not have normal values. The normal range of pH is supposed to be 7.35-7.45 and the partial pressure of CO2 is 35-45 mmHg. When these values are in range, the amount of bicarbonate is between 22-28 mEq/L. Any changes in the above level of pH and PCO2 could lead to respiratory alkalosis or respiratory acidosis and, when HCO3- level differs, it leads to metabolic compensation as well. Hence, option (b) is correct.

Explanation for incorrect answers:

Option (a) is, ‘18-22 mEq/L...

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