
Also known as: Blood vessel pressing on windpipe
Tayo presents with severe breathing difficulty initially misdiagnosed as asthma. Investigation reveals an unusually large blood vessel associated with his accessory limb is compressing his trachea. Treatment requires amputation of one arm to eliminate the compressing vessel.
Also known as: Third arm
Tayo has a congenital third arm described as remnants of his twin. The surgical team performs a complex procedure to amputate his larger arm and transfer nerves to restore function to his smaller arm.
Also known as: Broken arm from weak bones
Mason's arm breaks during a routine physical examination due to severe bone loss from prolonged microgravity exposure during his eight months on the International Space Station.
Also known as: V-tach
During surgery to repair his fracture, Mason develops ventricular tachycardia and requires defibrillation. This leads to discovery of his dilated cardiomyopathy.
Also known as: Enlarged heart muscle disease
Mason has developed a dilated heart chamber from prolonged exposure to zero gravity weakening his heart muscle. This causes life-threatening arrhythmias requiring implantation of a defibrillator.
Also known as: Water on the brain
Mason develops hydrocephalus as a delayed complication of space travel. His brain shifted in microgravity and is now shifting back, blocking CSF flow. Requires shunt placement and subsequent decompressive craniotomy when the shunt fails.
Also known as: Heroin addiction
Hannah is a post-surgical patient struggling with opioid addiction and homelessness. She refuses rehab and ultimately overdoses at Dr. Glassman's home, requiring naloxone reversal. The episode explores Glassman's attempt to help her through harm reduction.
Also known as: Narcotic overdose
Hannah overdoses on street opioids likely contaminated with fentanyl while staying at Dr. Glassman's house. He discovers her and administers naloxone, saving her life.
Also known as: Bone thinning
Mason has severe bone loss from eight months in zero gravity, leading to his pathological fracture and requiring surgical stabilization.