Certified Wound Ostomy Nurse (CWON) Practice Test

How long should surgical incisions be covered with a dry, sterile dressing, and why?

1. 12-24 hours to prevent infection

2. 24-48 hours because incisions resurface within 2-3 days

3. 48-72 hours to ensure proper healing

4. 1 week to promote granulation

The correct answer is: 24-48 hours because incisions resurface within 2-3 days

Covering surgical incisions with a dry, sterile dressing for 24-48 hours is recommended primarily because this duration allows the incisions sufficient time to begin the healing process and reduces the risk of introducing bacteria that could lead to infection. During the first couple of days post-surgery, the incision site is at its most vulnerable, and keeping it covered helps to maintain a clean and protected environment. Additionally, this time frame aligns with the body's natural healing progression, where the initial inflammatory phase typically occurs within the first few days. By 48 hours, a degree of epithelialization often begins, laying the foundation for wound healing. Maintaining the dressing for this period balances the need for protection against potential infection while allowing for necessary airflow and moisture that facilitate healing without excessive dressing changes that could disrupt the healing tissues.