anything done or to be done; anything requiring action or effort; business; concern: an affair of great importance. 2. affairs, matters of commercial or public interest or concern; the transactions of public or private business or finance:
Hyperlactatemia is defined as a persistent, mild to moderate (2-4 mmol/L) increase in blood lactate concentration without metabolic acidosis, whereas lactic acidosis is characterized by persistently increased blood lactate levels (usually >5 mmol/L) in association with metabolic acidosis.
Lactic Acid, (Plasma) Test. The lactic acid (plasma lactate) test is used in evaluation of metabolic acidosis.Hypoperfusion is the most common cause of lactic acidosis and hyperlactacidemia may be the only marker of tissue hypoperfusion, an indicator of circulatory shock.actic Acid, (Plasma) Test. The lactic acid (plasma lactate) test is used in evaluation of metabolic acidosis.