Imagine going in to the hospital for a simple procedure. You have your pre-op with the surgeon, the anesthesiologist then comes in to put you under, and you fall blissfully unconscious before they even wheel you into the operating room. Not only did the staff administer anesthesia, but they also gave you a paralytic to keep your muscles from twitching during the surgery.
If someone is undergoing surgery in an operating room, there's a chance that they or one of their loved ones will see an extra person there, sometimes coaching the doctors. They aren't scrubbed in, but are often present while medical devices like new hips or knees and installing cardiac defibrillators or spine surgeries occur.
There is no denying that hospital negligence can take many forms. Misdiagnosis, delayed medical assistance, emergency room errors, and surgical errors happen too often. Even so, it was surprising to hear about a patient who woke up after a procedure only to learn that a nurse accidentally threw away the organ that she was meant to receive.