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Metabolic acidosis is a condition in which there is too much acid in the body fluids.
Acidosis - metabolic
Metabolic acidosis occurs when the body produces too much acid, or when the kidneys are not removing enough acid from the body.
There are several types of metabolic acidosis:
Diabetic acidosis (also called diabetic ketoacidosis and DKA): Develops when acidic substances known as ketone bodies, build up in the body. This occurs with uncontrolled type 1 diabetes
Hyperchloremic acidosis: Results from excessive loss of sodium bicarbonate from the body. This can occur with severe diarrhea
Lactic acidosis: Results from a buildup of lactic acid. It can be caused by:
Other causes of metabolic acidosis include:
Most symptoms are caused by the underlying disease or condition that is causing the metabolic acidosis. Metabolic acidosis itself usually causes rapid breathing. Confusion or lethargy may also occur. Severe metabolic acidosis can lead to shock or death. In some situations, metabolic acidosis can be a mild, chronic (ongoing) condition.
Arterial blood gas analysis and a serum electrolytes test (such as a basic metabolic panel) will confirm acidosis is present and determine whether it is respiratory acidosis or metabolic acidosis.
Other test may be needed to determine the cause of the acidosis.
Treatment is aimed at the underlying condition. In some cases, sodium bicarbonate (the chemical in baking soda) may be given to reduce the acidity of the blood.
The outlook will depend on the underlying disease causing the condition.
Very severe metabolic acidosis can lead to shock or death.
Seek medical help if you have symptoms of any disease that can cause metabolic acidosis.
Diabetic ketoacidosis can be prevented by keeping type 1 diabetes under control.
Seifter JL. Acid-base disorders.In: Goldman L, Schafer AI, eds. Goldman's Cecil Medicine. 24th ed. Philadelphia, PA: Saunders Elsevier; 2011:chap 120.
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