A nurse explains to a patient's family that the role of nursing is to help the patient with ...

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Orem's theory states that the individual practices self-care, a set of learned behaviors, to sustain life, maintain or restore functioning, and bring about a condition of well-being. The nurse assists the client with self-care when he or she experiences a deficit in the ability to perform.
Peplau's theory revolves around interpersonal processes.
Imogene King's theory states that the goal of nursing is to aid the patient in returning to health so he or she can resume previous roles.
Jean Watson's theory is concerned with caring and specific behaviors that exemplify caring.