This test measures the level of lactic acid, also known as lactate, in your blood. Lactic acid is a substance made by muscle tissue and by red blood cells, which carry oxygen from your lungs to other parts of your body. Normally, the level of lactic acid in the blood is low. Lactic acid levels rise when oxygen levels decrease. What is lactic acidosis? Lactic acidosis is a form of metabolic acidosis, a condition in which there's too much acid in the body. Lactic acidosis begins when a person's body makes too much High blood lactate level is a marker of tissue hypoxia and indicates presence of poor perfusion and oxygen debt which increases lactate levels due to anaerobic glycolysis (Rivers et al., 2001). From: Encyclopedia of Respiratory Medicine (Second Edition), 2022 View all Topics Add to Mendeley About this page Assessment of Cardiovascular Function A widely held misconception is that lactate is a toxic waste product of metabolism, driven by hypoxia and/or hypoperfusion. 1 It is now well established that increases in blood lactate due to hypoxia are likely the exception rather than the rule. 1 At physiological pH, lactic acid (C 3 H 5 O 3) is almost completely dissociated into lactate anion Lactic acid is mainly produced in muscle cells and red blood cells. It forms when the body breaks down carbohydrates to use for energy when oxygen levels are low. Times when your body's oxygen level might drop include: A test can be done to measure the amount of lactic acid in the blood. Lactate is a key energy substrate in skeletal muscle fibers, providing us with sufficient energy during exercise. Lactate increases the number of mitochondria (the energy powerhouses of cells) in muscle cells. Lactate plays a key role in supplying energy for cognitive functioning during exercise. .

what is lactate in blood