Which statement best describes the duty of a nurse?

The duty of a nurse encompasses a range of responsibilities, with a key focus on ensuring patient safety and the proper execution of healthcare tasks. The correct choice accurately highlights that a nurse must ensure that delegated tasks are performed by certified personnel. This oversight is vital in maintaining standards of care and ensuring that patients receive appropriate and safe treatment.

Nurses are responsible for delegating tasks to other healthcare team members, but they must confirm that these individuals possess the necessary qualifications and certifications to perform such tasks competently. This approach not only protects patients but also helps in fostering a collaborative healthcare environment where various professionals work together effectively.

In contrast, the other options represent important aspects of healthcare but do not fully encapsulate the primary duty of a nurse in the context of delegation and oversight. Although nurses may play roles in prescribing medications, providing emotional support, and conducting laboratory tests, these responsibilities are typically governed by specific regulations and scope of practice that vary by state and healthcare setting. The emphasis on delegation is what distinctly aligns with the primary obligations of nursing practice, making the identified choice the most suitable answer.