Electrolytes and fluid balance
What is Chloride?
your acid-base balance
- Unit
- mmol/L
- Sample
- Serum
- Fasting
- No fasting needed
- Turnaround
- 1 day
Chloride often tracks sodium and helps maintain acid-base balance and fluid status.
The value is read alongside sodium and bicarbonate when assessing acid-base disturbances.
What does low Chloride mean?
Low chloride can appear with vomiting or alkalosis.
What does high Chloride mean?
High chloride can appear with dehydration or acidosis.
Panels that measure Chloride
- Kidney Test
- Health Check Complete
More markers in the same area
Launching in Stockholm in 2026.
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This is general information about the marker, not an assessment of your values and not medical advice. Last updated: August 2026.