Anion Gap

Electrolytes

A healthy result should fall into the range 3 - 11 mEq/L.

Our body chemistry consists of a never-ending cascade of molecules reacting with one another to make more complex molecules. A few are commonly familiar: sodium, potassium, and chloride. These can be further classified by their electrical charge. Sodium and potassium are positively charged and are referred to as cations; chloride is negatively charged and is referred to as an anion. An anion gap refers to the measured difference between cations and anions in serum, plasma, or urine.  An usual anion gap measurement may indicate a number of conditions depending on whether the reading is high or low, the most common being a high anion gap reading as an indication of acidosis. Symptoms of acidosis include:

            -Fatigue

            -Confusion

            -Shortness of breath

            -Headache

There are a number of cations and anions in the body; therefore, it is most useful to narrow an anion gap blood test to a few specific molecules or a single source of fluid to make the readings more concise. 

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 (UC) in serum. At present, the reference range of anion gap has been lowered from 8-16 to 3-11 mmol/l because of the changes in technique for measuring electrolyte. However, clinicians and textbooks still refer and use the old reference value of 8-16 mmol/l. This may lead to misinterpretation of the value of anion gap. [R]

Anion Gap result calculator

insert the value from you Anion Gap test result.

Is your Anion Gap too high or too low?
Upload your lab report and instantly interpret your result.

DIY Health One

One Lab Report Interpretation

  • One lab report interpretation
  • Use self upload form
  • 800+ biomarkers explained
  • Recommendations
  • Pay per additional interpretations
  • Report uploading support*

15 $

Analyze and Interprete Now

*Additional costs may apply

DIY Health Track

Unlimited Lab Report Interpretations

  • Unlimited lab report interpretations
  • Use self upload form
  • 800+ biomarkers explained
  • Recommendations
  • Online support
  • We do the uploading for you*

59 $/year

Analyze and Interprete Now

*4 report uploads by our team are included per year

Sign Up, Upload Tests, Get Insights and Improve with HealthMatters.io.

Sign up now

Your Privacy And Security

At HealthMatters, we're committed to maintaining the security and confidentiality of your personal information. We've put security measures in place to help protect against the loss, misuse or alteration of information under our control. We use procedural, physical and electronic security methods designed to prevent people who aren't authorized from getting access to this information. Our internal code of conduct adds additional privacy protection. See our Privacy Policy for more information.