An older adult client with a long history of chronic obstructive pulmonary disease (COPD) is admitted with progressive shortness of breath and a persistent cough. The client is anxious and is complaining of a dry mouth. Which intervention should the nurse implement?

A. Assess client for signs and symptoms of upper airway infection:
While upper airway infections can contribute to respiratory symptoms, the client's history of asthma and the exacerbation of symptoms during exercise suggest that asthma management should be a priority.

B. Determine if the client is using an inhaler before exercising:
This is a relevant consideration, and ensuring proper pre-exercise use of bronchodilators (such as an inhaler) is an important aspect of asthma management. However, the question is broader and involves a review of the client's overall asthma management.

C. Teach client to use pursed lip breathing when episodes occur:
Pursed lip breathing is a technique that can help manage symptoms, especially during episodes of bronchoconstriction. However, the focus here is on a more comprehensive assessment and review of the client's routine asthma management.

D. Review the client's routine asthma management prescriptions:
This is the correct answer. The client's reported symptoms during exercise suggest a potential need for adjustments to the routine asthma management plan. Reviewing the client's prescriptions, including the type and timing of medications, can help ensure optimal control of symptoms, especially during physical activity.

A. Measure the client's blood pressure:
While monitoring blood pressure is an important aspect of assessing a client's overall condition, it is not the immediate priority in a suspected opioid overdose. Respiratory depression and difficulty in arousing are more critical concerns that warrant prompt intervention with naloxone.

B. Remove all of the morphine patches:
While eventually, the nurse will need to address the presence of multiple morphine patches, removing them is not the first action. Administering naloxone to reverse the opioid effects takes precedence over patch removal.

C. Apply oxygen per face mask:
While providing oxygen may be necessary to support respiratory function, it doesn't address the underlying cause of the respiratory distress, which is likely opioid toxicity. Administering naloxone is the more direct and immediate intervention to counteract the effects of the opioids.

D. Administer a narcotic antagonist:
This is the correct and immediate priority. If the client is difficult to arouse and has multiple morphine patches, it raises concerns about opioid toxicity. Naloxone is a narcotic antagonist that can reverse the effects of opioid overdose, particularly respiratory depression, and is crucial in this scenario to restore normal respiratory function.