A nurse is caring for an adolescent who states, "I joined the track and field team, so I won't argue with my brothers anymore." The nurse should identify that the client is using which of the following defense mechanisms?

A. Using the telephone numbers of the clients is correct. According to The Joint Commission's National Patient Safety Goals, at least two unique identifiers, such as date of birth and telephone number, should be used to verify client identity before administering medications to prevent errors.

B. Using the room numbers of the clients is incorrect. Room numbers can change, and relying on them increases the risk of medication errors if a client is moved or misidentified.

C. Using the diagnoses of the clients is incorrect. A diagnosis is not a unique identifier, as multiple clients in a unit may have the same or similar conditions, leading to potential confusion.

D. Using the names of the clients' nearest relatives is incorrect. Family members’ names do not provide a direct, unique way to verify the client’s identity, making them unreliable for medication administration.

A. "I will increase my fluid intake to 1,700 milliliters per day.": While maintaining hydration is important for people with COPD, 1,700 milliliters may not be sufficient for all individuals. Fluid intake should be tailored to the patient's needs, and the client should be advised to follow specific guidelines from their provider.

B. "I should do aerobic exercises once per day.": This is somewhat correct, as regular exercise is beneficial for people with COPD, but it should be individualized based on the client's current condition and limitations. However, exercise should not be the primary focus of initial teaching for someone newly diagnosed with COPD.

C. "I will consume low-protein, low-calorie foods.": This is incorrect. COPD clients generally need a balanced diet with sufficient protein and calories to support respiratory function and muscle strength. A low-calorie diet may contribute to weight loss and muscle wasting, which can worsen COPD symptoms.

D. "I should practice pursed-lip breathing exercises.": This is correct. Pursed-lip breathing helps to control shortness of breath, improve ventilation, and reduce the work of breathing, which is an important strategy for individuals with COPD to manage their condition.