Description. RN - Wound Ostomy at Providence Portland Medical Center is a per diem part ime position working during weekdays and weekends on a day shift. The hospital-based Wound Ostomy Nurse serves as a clinical resource and consultant for the acute and rehabilitative care of patients with selected disorders of the gastrointestinal, genitourinary, and integumentary systems such as acute and chronic wounds (e.g., complex draining wounds, fistulae...