Final answer:
The task the staff nurse can safely delegate to the nursing assistive personnel is providing a patient bed bath. Other tasks requiring professional judgment, such as assessment and medication administration, cannot be delegated to assistive staff.
Step-by-step explanation:
A staff nurse, who is caring for six patients and working with nursing assistive personnel, can safely delegate certain tasks. The task that can be delegated to the nursing assistive personnel is the patient bed bath. It is important to understand that tasks like patient assessment, patient discharge teaching, and patient medication administration are not within the scope of practice for nursing assistive personnel as these tasks require professional judgment and specialized training. Nursing assistive personnel can provide support under the direct supervision of a registered nurse, focusing on more routine and non-invasive tasks such as patient hygiene, taking vital signs, and preparing equipment under sterile conditions, as needed.