What are possible complications associated with oxygen therapy?

Oxygen toxicity is a known complication of oxygen therapy, particularly when patients are exposed to high concentrations of oxygen for extended periods. This condition arises because oxygen, while essential for cellular metabolism, can produce reactive oxygen species (ROS) in excessive amounts. The accumulation of ROS can lead to oxidative stress, which can damage tissues, particularly in the lungs and central nervous system. Symptoms of oxygen toxicity may include chest pain, cough, difficulty breathing, and in severe cases, can lead to pulmonary edema or acute respiratory distress syndrome.

While hypotension and decreased respiratory rate could potentially occur in some circumstances related to specific events, such as a response to medication or a patient’s overall health condition, they are not typical direct complications of oxygen therapy itself. Similarly, increased appetite is not associated with oxygen therapy and is not a complication. Recognizing the risks of oxygen toxicity is crucial in managing therapy effectively, ensuring that patients receive the necessary oxygen levels without experiencing adverse effects.