The Serum Anion Gap Page 1 Original Articles The Serum Anion Gap Has the Reference Interval
Really Fallen? William L. Roberts, MD, PhD, Robbyn D. Johnson, MTtASCP) 0 Objective—To …

The traditional anion gap [AG= Na–Cl–(total CO2)] mean value of 12 mEq/L was established
during the 1970s with analyzer methods that are no longer used widely. No studies have …

We report the incidence of normal (50.4%), increased (46.7%), and decreased (2.9%) anion
gap among hospitalized patients in a retrospective study. The mean and range of increased …

The" anion gap" refers to the concentration of unmeasured anions in blood. The most
commonly used formula to measure this is [Na]—[C1]—[HCO3] and a typical reference …

The anion gap is a calculated parameter derived from the difference between the major
plasma cations and anions in serum/plasma or whole blood, with a widely used simple …

• Using modern electrode technology (Beckman ASTRA analyzer), we evaluated the
reference range for the anion gap (calculated as sodium minus chloride minus bicarbonate …

The serum anion gap, calculated from the electrolytes measured in the chemical laboratory,
is defined as the sum of serum chloride and bicarbonate concentrations subtracted from the …

Because the anion gap is useful in classifying acid-base disorders, quantitative information
on this variable should be readily available. Three populations were studied and means and …

Anion gap (AG) is a calculated value commonly used in clinical practice. It approximates the
difference between the concentration of unmeasured anions (UA) and unmeasured cations …

The anion gap in the serum is useful in the interpretation of acid-base disorders and in the
diagnosis of other conditions. In the early 1980s, ion-selective electrodes for specific ionic …