What You Don't Know Can't Hurt You - S7-E12
Factual error: After an operating room nurse is unable to insert an intravenous catheter into a patient's arm during a surgery, Sharon Goodwin standing behind her volunteers to try. She inserts it flawlessly and states that she has placed "a 16 gauge in the AC." The catheter that she was holding has a green base, which is an 18 gauge. 16 gauge needles have a gray base. (00:33:00)