Final answer:
The best intervention for Disturbed Body Image Related to Colostomy is to engage the patient in the care of their ostomy, allowing them to regain control and adapt positively to the changes in body image.
Step-by-step explanation:
The best intervention to address the nursing diagnosis of Disturbed Body Image Related to Colostomy is to engage the patient in the care of the ostomy to the extent that the patient is willing. Active participation in self-care can help the patient regain a sense of control and foster positive adaptation to body image changes. Although emphasizing the necessity of the colostomy or its temporary nature might provide some reassurance, these approaches do not directly involve the patient in the management of their condition and may not be as effective in addressing the emotional and psychological components of the diagnosis.