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Anion-gap metabolic acidosis

High anion gap metabolic acidosis is a form of metabolic acidosis characterized by a high anion gap (a medical value based on the concentrations of ions in a patient’s serum). An anion gap is usually considered to be high if it is over 11 mEq/L. G — glycols (ethylene glycol & propylene glycol) O — […]

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A-a Gradient – Alveolar-arterial PO2 difference

A-a Gradient or Alveolar-arterial PO2 difference – measure of the difference between the alveolar concentration (A) of oxygen and the arterial (a) concentration of oxygen. The A-a Gradient can help determine the cause of hypoxia. Assesment of oxygenation valid only on room air increase with age Causes of increased (A-a) difference: COPD Atelectasis Pneumonia Pulmonary edema […]