Convert any Chloride (Cl⁻) result between units on the unit converter.
What is the normal range for Chloride (Cl⁻)?
The standard teaching reference range for Chloride (Cl⁻) is 98–106 mEq/L in conventional units, or 98–106 mmol/L in SI units. This value is measured in serum or plasma.
A commonly taught critical (panic) value is < 80 or > 115 mmol/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
Common causes of a high Chloride (Cl⁻)
Dehydration
Metabolic acidosis (non-gap)
Excess normal saline
Renal tubular acidosis
Below the range
Common causes of a low Chloride (Cl⁻)
Vomiting or gastric suction
Metabolic alkalosis
Heart failure (dilutional)
Diuretics
At the bedside
Nursing considerations
Chloride generally shifts with sodium; interpret with the acid–base picture.