Final answer:
When damaged tissue is being replaced with fibrous tissue, the nurse should document this as proliferation. Proliferation is the process of cell division and growth, leading to the restoration of tissue integrity.
Step-by-step explanation:
When a nurse observes that damaged tissue is being replaced with fibrous tissue, it is called proliferation. Proliferation is the process of cell division and growth, leading to the restoration of tissue integrity. It involves the rapid replication of cells, such as fibroblasts, to fill the wound and promote healing.