Also known as: Heart stopped
Marquis, a 32-year-old single father, collapses during a pickup basketball game and experiences cardiac arrest. He is resuscitated and later suffers another cardiac arrest from ventricular fibrillation while out of the hospital, requiring emergency response.
Also known as: High blood pressure
Marquis has undiagnosed, untreated hypertension that has been developing over time, which caused his cardiac emergency. This diagnosis drives Max's initiative to provide healthcare services at local barbershops to screen African American men who avoid traditional medical care.
Also known as: Enlarged heart muscle disease
During surgery, Dr. Reynolds discovers Marquis has a dilated left ventricle with much thinner heart walls than expected, requiring extensive cardiac surgery that takes over six hours instead of the planned two hours.
Also known as: Lead toxicity
Xander, a young boy, presents with violent emotional outbursts and self-injurious behavior (banging head against wall). Blood work reveals extremely high lead toxicity affecting all his organs, causing impulse control problems, emotional dysregulation, and hand tremors. The contamination is traced to city workers sandblasting lead paint from an overpass without proper containment.
Also known as: Self-harm
Xander injures himself by banging his head against a wall during a homework frustration episode, resulting in a head laceration requiring stitches. This behavioral symptom is later revealed to be caused by lead poisoning.
Also known as: Terminal cancer
Molly, a former investment banking partner, has incurable metastatic cancer and is on her seventh experimental drug regimen. She experiences severe pain and physical disability (cannot grip a pen). The episode focuses on the ethical question of whether she should continue experimental treatments or transition to hospice care.
Also known as: Chronic leg pain
Dr. Bloom continues to experience significant chronic pain from her previous injury, requiring ongoing physical therapy sessions. During the episode, she experiences acute pain while working and nearly collapses during a patient seizure.
Also known as: Seizure
Xander experiences a seizure while hospitalized, treated with IV Ativan. The seizure is a complication of his severe lead poisoning affecting his neurological system.