Dorothea orem-rationale: dorothea orems general theory of nursing addresses self-care deficits as the basis for nursing care. this theory posits that the nurse intervenes to reestablish the clients self-care capacity. dorothy johnsons behavioral systems theory views nursing as a means to reestablish balance in the clients behavioral subsystems, which have been disrupted by stress. according to virginia hendersons theory of nursing, the nurse focuses on the clients basic needs. in martha rogers unitary human beings theory, the nurse helps the client balance the changes that occur as he constantly evolves.client needs category: safe, effective care environmentclient needs subcategory: management of carecognitive level: knowledgereference: craven, r.f., and hirnle, c.j. fundamentals of nursing: human health and function, 5th ed. philadelphia: lippincott williams & wilkins, 2007, p. 59.