A blood lactate of 2.47 mmol/L is an elevation of lactate; physiologic elevations are not serious, while pathologic elevations are usually more serious. Normal values for blood lactate range from 0.44 to 1.78 mmol/L. Blood lactate measurements reflect the state of tissue oxygen supply and metabolism as well as inadequate perfusion. Increased levels of lactate can be seen in physiologic elevations and pathologic elevations in a variety of clinical conditions. Therefore, 2.47 mmol/L is above normal, but the severity is related to the primary disease. 1. Physiological elevation of blood lactate: the cause is usually due to strenuous exercise, fatigue, if the body does not have other adverse reactions, the patient can be adjusted through the regulation of lifestyle. 2. Pathological elevation of blood lactate: pathological elevation is related to lactic acidosis, myocarditis, tumor hepatitis and diabetes. If there is any abnormal laboratory test, you need to go to the hospital as soon as possible, and the doctor will formulate individualized diagnosis and treatment plan according to the specific condition, so as not to delay the condition.