Which assessment would indicate worsening COPD in a patient?

Decreased oxygen saturation levels are a critical indicator of worsening chronic obstructive pulmonary disease (COPD). In patients with COPD, the airways become narrowed, making it difficult for them to breathe and exchange gases effectively. As the condition progresses, the ability of the lungs to adequately oxygenate the blood diminishes, leading to lower oxygen saturation levels.

Monitoring oxygen saturation is essential in COPD management, typically using a pulse oximeter. Normal oxygen saturation levels range from 95% to 100%. A decrease below this range indicates that the lungs are not able to provide sufficient oxygen to meet the body’s demands, signifying an exacerbation or progression of the disease. This may require immediate medical attention and intervention, such as supplemental oxygen or changes in medication.

In contrast, increased peak flow readings, improved respiratory rate, and stable blood pressure do not indicate worsening COPD. Increased peak flow readings suggest better airflow, improved respiratory rate could signify efficient breathing, and stable blood pressure indicates the cardiovascular system remains stable, which are not signs of worsening respiratory illness.