A low anion gap result on a blood test is often a technical error, though it can stem from a health issue. Here, learn what low and high anion gap results mean.

An anion gap test checks the levels of acid in your blood. Learn about the conditions that the test results can reveal, and what a high/low test result may indicate.

The anion gap test uses measures of electrolytes to assess the body's pH level. A high anion gap result suggests high acidity, which can indicate a health condition. Read on.

An elevated serum anion gap, particularly a value higher than 30 mmol per liter, can provide supportive evidence.

A high anion-gap metabolic acidosis, an increased serum osmolal gap, or both can suggest that one of the toxic alcohols is present in the blood, but these abnormal laboratory results are not ...

The combination of an elevated osmolar gap and decreased anion gap without metabolic acidosis should be considered highly suggestive of severe lithium intoxication after exclusion of severe ...

As cannabis laws relax in the US, it's becoming important to distinguish between typical diabetic ketoacidosis and hyperglycemic ketosis due to cannabis hyperemesis syndrome in type 1 diabetes.

As such, a patient late in their course may present with severe acidemia and a very high anion gap without an osmolar gap.

The anion gap, especially if elevated, can help direct laboratory evaluation and management. It is less helpful if the history does not support many of the causes for a normal anion gap acidosis.