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Metabolism & Renalmmol/L

Serum Anion Gap

The anion gap is calculated from sodium, chloride, and bicarbonate to assess electroneutral balance in the bloodstream.

Common laboratory aliases and abbreviations:Trou anioniqueTrou anionique plasmatiqueSerum anion gapAnion gapHiato aniónicoAnion gap sérico

Test your personal value

Enter the number from your lab report to instantly see how it compares to reference ranges.

mmol/L
12mmol/L
8
16
‹ LowRange: 8 – 16 mmol/LHigh ›

Physiological Reference Ranges

The ranges below represent standard adult physiological values. Your laboratory's printed reference range always takes precedence.

Adults (general)

8 – 16 mmol/L

Adult females

8 – 16 mmol/L

Adult males

8 – 16 mmol/L

Common alternative units:
mEq/L(×1 mmol/L)

What does a low result mean?

A slightly lower value is most commonly caused by mild hypoalbuminemia or generous hydration.

What does a high result mean?

A mild elevation can follow intense athletic training (transient lactic acid) or prolonged overnight fasting.

Questions ready for your doctor

Bring these questions to your next consultation to discuss with your healthcare practitioner:

  • Does this calculated gap align well with my electrolyte and bicarbonate values?
  • Could recent exercise or sports have nudged this balance?
  • Is this result generally reassuring?

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Important information — Medical notice

ScanMyLab is for informational purposes only. It does not provide a diagnosis and never replaces the advice of your doctor or laboratory.