Also known as: Blood clot in liver vein
This is a continuation/flashback to Richard Evans' death caused by 2.0's AI error. The episode reveals that 2.0 created phantom lesions during surgery, leading Dr. Marcel to inadvertently cause a fatal hepatic vein clot. This revelation drives the main plot of exposing 2.0's flaws.
Also known as: Heroin addiction
Sean, Dean Archer's son and potential kidney donor, relapses after seeing his father with Hannah. He is brought to the ED after passing out from alcohol and benzodiazepines. The relapse affects his ability to donate a kidney to his father.
Also known as: Kidney failure
Dr. Archer's ongoing kidney failure is featured as he awaits transplant from Sean. He develops his third peritoneal dialysis catheter infection and becomes septic, requiring a switch to hemodialysis. Sean's relapse delays the transplant by six months.
Also known as: Smoke inhalation
Fred Anderson is trapped in a burning car after an accident and suffers severe smoke inhalation with dangerously elevated carboxyhemoglobin levels, requiring intubation and helicopter transport.
Also known as: Broken rib
Janice Anderson sustains several broken ribs and minor pulmonary contusion in the car accident initially believed to be a murder-suicide attempt.
Fred Anderson is diagnosed with alien hand syndrome secondary to a previous stroke. His hand involuntarily grabbed the steering wheel and wouldn't let go, causing the car accident. His wife initially believes it was a murder-suicide attempt.
Also known as: Brain attack
CT scan reveals Fred had a small stroke around Easter that affected his frontal lobe, causing calcification and atrophy. This stroke is the underlying cause of his alien hand syndrome and explains his recent symptoms of weakness and forgetfulness.
Also known as: Twisted intestine
Sarah presents with severe abdominal pain and constipation. CT reveals her sigmoid colon has twisted on itself causing bowel obstruction. She requires emergency surgery which Dr. Archer performs off-the-books due to her insurance issues.
Also known as: Abdominal infection
Dr. Archer develops bacterial peritonitis from his peritoneal dialysis catheter, his third such infection. This leads to sepsis and necessitates switching from peritoneal dialysis to hemodialysis.
Also known as: Hernia in groin
Jack Dayton undergoes elective hernia repair surgery in the 2.0 OR suite as a demonstration for investors during his IPO launch. During surgery, 2.0 malfunctions and produces false warnings about bowel perforation that doesn't exist.