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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

If sodium bicarbonate had initially been administered to correct the patient’s low pH level, the pH and HCO 3 readings would have been ___________ than normal after the patient’s Pa co 2 had been lowered to the patient’s normal level.

Summary Introduction

To review:

The given blank space in the statement, “If sodium bicarbonate had initially been administered to correct the patient’s low pH level, the pH and HCO3- readings would have been __________ than normal after the patient’s PaCO2 had been lowered to the patient’s normal level.”

Introduction:

The PCO2/HCO3-/pH  nomogram helps to determine the acid–base status inside the body cells and tissues. The normal value of the pH lies in the range of 7.38–7.42, the H+ concentration is 40 nM/L for the pH 7.4. The normal value of PaCO2 is 40 mm Hg and  HCO3- is 24 mEq/L.

Explanation

The sodium bicarbonate, when administered, dissociates into sodium ions (Na+) and bicarbonate ions ( HCO3-), and thus, increases the concentration of the bicarbonate ions. The concentration of the  HCO3- was low initially for the increase in PaCO2 the value of 70 mm Hg

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