What potential risk can result from altering O2 levels illegally?

Altering oxygen levels illegally can lead to toxic buildup and can be life-threatening for the patient. When oxygen is administered at inappropriate levels, it can lead to oxygen toxicity, which can cause serious health issues. This condition occurs because elevated levels of oxygen can produce reactive oxygen species that damage cells and tissues. Symptoms of oxygen toxicity may include respiratory distress, seizures, and in severe cases, can lead to death. Therefore, maintaining the correct oxygen saturation levels is crucial for patient safety and overall health, making it essential that any adjustments to oxygen therapy are based on medical guidance and not done illegally or without proper supervision.