Hooten's mentor, Dr. Arvin Wayne (guest star Hal
Holbrook), walks into the wrong procedure on the wrong day,
leading the surgeons at Chelsea General to question the
cognitive abilities of one of the hospital's elder statesmen.
When a top competitive swimmer suffers a seizure in the
emergency room, Villanueva follows his gut - leading to a
surprising diagnosis. Tina must perform a risky transvenous
thrombolysis with Ty and Michelle's help. And Sydney implies
that Lieberman (guest star Jonathan Silverman) might be a
crummy doctor for missing the signs of bacterial endocarditis
in a former patient.