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.
Quick Answer. According to WebMD, high levels of lactic acid mean that the body's lactate threshold, also known as the anaerobic threshold, has been passed, and that lactic acid is building up in the kidneys and liver. While lactic acidosis typically causes fatigue and muscle aches, it can be potentially life-threatening.