Certified Ostomy Care Nurse (COCN) Practice Exam – Prep & Study Guide

The stoma size can change frequently, especially during the initial period after surgery as the body adjusts and healing occurs. Typically, it is recommended to measure the stoma with each pouch change for about 6 weeks. This timeframe allows for monitoring any significant changes in the stoma's size and shape, which may result from edema (swelling) or other healing processes. Accurately measuring the stoma ensures that the proper-sized pouch is used, preventing leaks and protecting the skin around the stoma, which is critical for the patient's comfort and health.

After the initial 6-week period, stoma measurements may become less frequent, as the stoma tends to stabilize. This understanding is essential for ostomy care nurses to provide optimal care and support to patients post-surgery.