   Chapter 7, Problem 13RQ

Chapter
Section
Textbook Problem

What is the anion gap in the patient with the following clinical data? Na +             128   mEq/L Cl -                   97   mEq/L HCO 3 -     22   mEq/L

Summary Introduction

To analyze:

The anion gap in the patient with the data:

Na+ : 128 mEq/LCl- : 97 mEq/LHCO3- : 22 mEq/L

Introduction:

The anion gap can be calculated by various individual medical laboratory tests. It is denoted by the abbreviation ‘AG or AGAP’. This is the difference between the particular cations and anions present in the plasma, serum, or urine. It basically gives an idea about the cause of metabolic acidosis.

Explanation

The anion gap can be calculated mathematically by subtracting the concentration of Na+ ions (sodium ions) from the sum of HCO3- (bicarbonate ions) and Cl- (chloride ions):

Anion gap=[Na+]([Cl-]+[H

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