Also known as: HCP
The central mystery of the episode. A fitness instructor presents with respiratory distress, cardiac arrest, ascending numbness, muscle weakness, and hallucinations. The team discovers she had gastric bypass surgery, and her switch to a low-carb diet triggered hereditary coproporphyria. Treatment requires reversing her gastric bypass and returning to a high-carb, glucose-rich diet.
Also known as: Failed gastric bypass
The patient had concealed a previous gastric bypass surgery to maintain her 'natural fitness' brand. The surgery was initially suspected as the cause of her symptoms through various mechanisms including SIBO and malabsorption, but ultimately the surgery's dietary restrictions (low-carb) unmasked her underlying hereditary coproporphyria.
Also known as: Huntington's disease
Thirteen begins participating in a clinical drug trial for Huntington disease. Her baseline tapping test reveals early nerve degeneration has already begun. She struggles with attending appointments because seeing other patients with advanced disease reminds her of her mother's death and her own future deterioration.