What causes lactic acidosis?

What causes lactic acidosis?

• A. Excessive intake of carbohydrates
• B. Lack of oxygen leading to anaerobic metabolism
• C. Excessive physical activity
• D. Renal failure

Answer: (B)

Lactic acidosis occurs primarily due to a lack of oxygen, which leads to anaerobic metabolism. When tissues do not receive sufficient oxygen, they cannot adequately process glucose through the aerobic pathways. As a result, the body resorts to anaerobic glycolysis to produce energy, which generates lactic acid as a byproduct. An increase in lactate in the bloodstream can overwhelm the body's ability to clear it, leading to acidosis. This metabolic shift is commonly seen in conditions of hypoxia (such as in severe respiratory diseases, shock, or during intense physical exertion) where the demand for oxygen exceeds the supply. Therefore, the key factor in lactic acidosis is this deficiency of oxygen, prompting anaerobic pathways to become the primary means of ATP production, resulting in the accumulation of lactic acid.

Lactic acidosis occurs primarily due to a lack of oxygen, which leads to anaerobic metabolism. When tissues do not receive sufficient oxygen, they cannot adequately process glucose through the aerobic pathways. As a result, the body resorts to anaerobic glycolysis to produce energy, which generates lactic acid as a byproduct. An increase in lactate in the bloodstream can overwhelm the body's ability to clear it, leading to acidosis.

This metabolic shift is commonly seen in conditions of hypoxia (such as in severe respiratory diseases, shock, or during intense physical exertion) where the demand for oxygen exceeds the supply. Therefore, the key factor in lactic acidosis is this deficiency of oxygen, prompting anaerobic pathways to become the primary means of ATP production, resulting in the accumulation of lactic acid.