Chloride

About This Test
Chloride is a key electrolyte that helps keep your body’s fluids and acid-base balance in check. Abnormal levels may reflect dehydration, vomiting/diarrhea, kidney or adrenal issues, or effects of diuretics. Doctors read chloride alongside sodium, potassium, and CO₂ to understand your overall chemistry balance. This test is commonly included in routine chemistry panels to spot problems early.

Patient Preparation
No fasting needed

Best Time to Test
Anytime

Tests Included
Chloride

Why is it done
Evaluation of dehydration, persistent vomiting/diarrhea, or weakness; work-up of kidney or adrenal problems; monitoring of diuretics or IV fluids; part of routine metabolic panels and follow-up of prior abnormal electrolytes.