Serum chloride test
Chloride is a type of electrolyte. It works with other electrolytes such as potassium, sodium, and carbon dioxide (CO2) to help keep the proper balance of body fluids and maintain the body's acid-base balance.
This article discusses the laboratory test to measures the amount of chloride in the fluid portion (serum) of the blood.
A blood sample is needed. For information on how this is done, see: Venipuncture.
Your doctor may tell you to temporarily stop taking certain drugs that can affect test results.
Drugs that may increase serum chloride measurements include:
Drugs that may lower serum chloride measurements include:
Never stop taking medication without first talking to your doctor.
Your doctor may order this test if you have signs of a disturbance in your body's fluid level or acid-base balance.
This test is usually ordered along with other blood tests, such as a basic or comprehensive metabolic panel.
DuBose TD Jr. Disorders of acid-base balance. In: Brenner BM, ed. Brenner and Rector's The Kidney. 8th ed. Philadelphia, Pa: Saunders Elsevier;2008:chap 14.
Seifter JL. Acid-base disorders. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 119.
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