What Is a Chloride Serum Test?


Quick Answer

A chloride serum test is performed to check the level of chloride electrolytes in blood or urine, according to WebMD. Chloride plays an important part in regulating pH levels, fluid balance and blood pressure. It is also an indicator of kidney health.

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Full Answer

The normal serum range for chloride in blood is 98 to 108 mmol/L, notes MedicineNet. A low level is called hypochloremia. This happens when too much chloride is lost through excessive sweating, urinating or diarrhea. Problems with the kidneys and adrenal glands can also cause this condition. When chloride levels are high, hyperchloremia occurs. This is caused by some kidney problems or an overactive parathyroid gland.

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