PAEA Surgery End Of Rotation (EOR) Practice Exam

What is the major risk involved with the increase in skeletal muscle oxidative metabolism during anesthesia?

1. Hypothermia

2. Delayed recovery

3. Inadequate oxygen supply

4. Cardiac arrhythmias

The correct answer is: Inadequate oxygen supply

The major risk involved with the increase in skeletal muscle oxidative metabolism during anesthesia is inadequate oxygen supply. During anesthesia, especially with certain agents that increase metabolic rates, the demand for oxygen by muscle tissues can rise significantly. If this elevated demand is not met by an adequate supply of oxygen, it can lead to tissue hypoxia. In the context of anesthesia, various factors such as changes in ventilation, reduced oxygenation, or the impact of anesthetic agents on the respiratory system can affect oxygen delivery. When skeletal muscles are metabolically active and require more oxygen, any shortfall in oxygen supply can impair their function and lead to complications. This scenario can also exacerbate pre-existing conditions or lead to systemic complications, making it critical for anesthesiologists to monitor oxygen levels and ensure that adequate supply is maintained throughout the procedure. While other risks like hypothermia, delayed recovery, and cardiac arrhythmias can occur due to various events during anesthesia, they are not directly related to the increase in skeletal muscle oxidative metabolism in the same way inadequate oxygen supply is. This distinction emphasizes the importance of oxygen management in the perioperative setting.