Lactic acidosis

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Lactic acidosis refers to the process leading to the production of lactate by anaerobic metabolism. It increases hydrogen ion concentration tending to the state of acidemia or low pH. The result can be detected with high levels of lactate and low levels of bicarbonate. This is usually considered the result of illness but also results from strenuous exercise. The effect on pH is moderated by the presence of respiratory compensation. Lactic acidosis is usually the result of tissue hypoxia which is not the same as arterial hypoxia. Adequate circulation of blood and perfusion of metabolizing tissue to meet demand is necessary to prevent tissue hypoxia. Lactic acidosis can also be the result of illnesses, medications, poisonings or inborn errors of metabolism that interfere directly with oxygen utilization by cells. The symptoms are generally attributable to the underlying cause, but may include nausea, vomiting, shortness of breath, and generalised weakness. The diagnosis is made on biochemical...

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