Chloride · high result
What does a high Chloride mean?
Short answer
High chloride usually travels with high sodium (dehydration) or with a low bicarbonate (metabolic acidosis from diarrhea, kidney disease or certain medications). Large saline infusions, some diuretics and hyperparathyroidism raise it too. On its own it is rarely the headline — it is interpreted with sodium, CO2 and kidney function.
Medically reviewed by Youmna DiStefano, MD · Last reviewed September 2026
What is the normal range for Chloride?
- age 18+: 98.0 – 107 mmol/L
Full reference table, citations and testing options: Chloride biomarker page.
What are the common causes of high Chloride?
- Dehydration (with high sodium)
- Metabolic acidosis: diarrhea, renal tubular acidosis, kidney disease
- Medications: acetazolamide, some diuretics, high-dose aspirin
- Hyperparathyroidism
- Respiratory alkalosis (chronic hyperventilation)
What symptoms go with high Chloride?
- Usually none; thirst and fatigue if dehydrated
What do clinicians usually check next?
- Sodium, CO2, potassium and kidney function together
- Hydrate and repeat
- Medication review
How do you recheck Chloride?
Prices are cash-pay; every order adds one $6 lab processing fee. Physician authorization is included; no insurance or referral needed.
| Test or panel | Type | Price | Fasting | Results |
|---|---|---|---|---|
| Basic Metabolic Panel | Test · 8 biomarkers | $20.99 | Yes | 1–3 business days |
Common questions
Is high chloride from eating too much salt?
No — like sodium, it's a water-balance and acid-base marker, not a salt-intake meter.
Sources
Educational content, not a diagnosis. Lab results are one input; a clinician interprets them with your history and exam.