During a home visit, the nurse should evaluate the effectiveness of a client's treatment for chronic obstructive pulmonary disease (COPD) by assessing for which primary symptom?

Choice A reason: Tachycardia, or a rapid heart rate, can be a symptom associated with COPD, especially during exacerbations or due to medication effects. However, it is not the primary symptom used to evaluate the effectiveness of COPD treatment.Choice B reason: Edem of the ankles can occur in COPD patients due to right-sided heart failure (cur pulmonale) associated with chronic lung disease. While it is an important symptom to monitor, it is not the primary indicator of COPD treatment effectiveness.Choice C reason: Dyspneal, or difficulty breathing, is the most significant and primary symptom of COPD. The primary goal of COPD treatment is to improve the client's breathing and reduce dyspneal. Assessing the client's level of breathlessness provides direct insight into how well the treatment is managing the condition.Choice D reason: Unilateral diminished breath sounds can indicate localized issues such as pneumothorax or pleural effusion rather than the overall effectiveness of COPD treatment. Bilateral lung sounds and general respiratory status are more relevant to evaluating COPD management.