When Benton is working on the janitor from the abortion clinic he has blood all over the side of his face and neck from the janitor's ruptured aorta. The camera cuts away to Mark briefly and when it cuts back to Benton his face and neck and totally clean.
Benton fails to take off his blood covered gloves before exiting the OR, causing him to get blood all over the door handle, a major violation of hospital sanitation rules.