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Anion Gap

Source
Mnemonic
Specimen Requirements
Specimen Handling
Additional Information

This is a calculated result from serum electrolytes.

For community patients, electrolytes include sodium (Na), potassium (K) and chloride (Cl) . If an anion gap is requested, please order a CO2 and EP.

For emergency patients, inpatients, and outpatients tested at urgent care and hospital sites, electrolytes include sodium (Na), potassium (K), chloride (Cl) and carbon dioxide (CO2). An anion gap will be reported.

Testing Location Chemistry-All Sites
Testing Frequency
Alternate Name(s)
Reference Interval 4 - 16 mmol/L