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Chloride (Serum)

Metabolic Unit: mmol/L

Major anion; tracks sodium

Also known as: Cl

Reference Ranges

Clinical Reference 98.0 – 107.0 mmol/L
Optimal Range 100.0 – 106.0 mmol/L
Critical Range < 85.0 / > 120.0 mmol/L

Serum sample

Related Conditions

Metabolic Acidosis High
Metabolic Alkalosis Low

Food & Lifestyle Recommendations

🍎 Food Reduce highly processed salty foods; assess fluid intake Often tracks with sodium
🍎 Food Assess fluid and electrolyte intake; include chloride-rich foods Chloride often tracks sodium

Evidence-Backed Supplements

When Low

Questions to Ask Your Doctor

  • Is this related to my acid-base status or hydration? Interpretation context
  • Could this reflect prolonged vomiting or diuretic use? Common causes of low chloride

Upload your blood test to see how your Chloride (Serum) compares to reference and optimal ranges.

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