All tests · Arterial Blood Gas (ABG)
Arterial Blood Gas (ABG)
Normal range 22–26 mEq/L (22–26 mmol/L SI). Specimen: Arterial blood (calculated).
Also known as: bicarbonate, actual bicarbonate.
| Specimen | Arterial blood (calculated) |
|---|---|
| Conventional range | 22–26 mEq/L |
| SI range | 22–26 mmol/L |
| Conversion factor | ×1 (conventional → SI) |
| Critical value | < 15 or > 40 mEq/L |
| Panel | Arterial Blood Gas (ABG) |
Convert any HCO₃⁻ (Arterial Bicarbonate) result between units on the unit converter.
The standard teaching reference range for HCO₃⁻ (Arterial Bicarbonate) is 22–26 mEq/L in conventional units, or 22–26 mmol/L in SI units. This value is measured in arterial blood (calculated).
A commonly taught critical (panic) value is < 15 or > 40 mEq/L. Critical results are reported to the provider immediately under your facility's policy.
Source: Adult reference values compiled from Pagana & Pagana, Mosby's Diagnostic and Laboratory Test Reference, and Fischbach & Dunning, A Manual of Laboratory and Diagnostic Tests. Reference ranges vary by laboratory, method, age, sex, and population — always use the range printed on the actual result.
Above the range
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