What symptom may indicate an adverse effect of oxygen therapy?

An indication of an adverse effect of oxygen therapy is seen in the development of cracks in the oral mucous membranes. When a patient is receiving oxygen, particularly in high concentrations or over extended periods, it can lead to dryness in the mucous membranes. This dryness can cause the membranes to become fragile, resulting in cracks or fissures. Maintaining adequate hydration and humidity levels is crucial when administering oxygen therapy to prevent these adverse effects.

In contrast, increased respiratory rate can be a typical physiological response to various conditions and may not necessarily indicate harm from oxygen therapy. Shortness of breath could reflect an underlying pulmonary issue rather than a direct effect of oxygen. A dry cough is also a potential side effect associated with oxygen therapy but is usually less indicative of significant adverse effects than cracked mucous membranes. Therefore, recognizing the condition of the oral mucous membranes is essential for identifying potential complications related to ongoing oxygen treatment.