Also known as: Ruptured kidney
Rox suffers a kidney rupture from a hit-and-run accident while on duty. She requires emergency surgery to remove the damaged kidney, which drives the central dramatic tension of the episode as her colleagues fight to save her life.
Following her trauma, Rox develops a carotid-cavernous fistula requiring complex neurosurgical intervention. She must be transported to San Diego for specialized surgery, creating additional urgency and conflict in the episode's climax.
Also known as: Collapsed lung
Rox presents with a pneumothorax from the hit-and-run accident, requiring immediate intervention to stabilize her breathing. This complicates her overall trauma management.
Also known as: Iron overload
JT, a Coast Guard chief, has hemochromatosis that has caused liver damage and a bleeding tumor requiring emergency surgery. The discovery that he has an identical twin who could be a donor drives a significant subplot about family and sacrifice.
Also known as: Liver tumor
JT has a liver tumor that begins bleeding, requiring emergency surgical resection. This leads to the discovery of his need for a liver transplant and the reunion with his twin brother.
Also known as: Leaky heart valve
Frank, JT's identical twin, is discovered to have mitral valve regurgitation during pre-surgical workup. This condition initially disqualifies him from donating part of his liver to his brother, creating dramatic conflict before the team finds a way to proceed.
Also known as: V-tach
Dominic, a young boy with a cardiac condition, experiences runs of ventricular tachycardia after his defibrillator is deactivated. This prompts Angus to arrange for a vagal sympathectomy surgery.
Also known as: Blood in chest cavity
Ranger, a musician stabbed during a robbery, develops a hemothorax requiring chest tube placement. This case creates teaching conflict between Mario and Noa regarding procedural timing.
Also known as: Ruptured spleen
Ranger develops a splenic rupture as a complication from the chest tube placement, demonstrating the consequences of rushed procedural decisions and requiring emergency intervention.
Also known as: Head laceration
Helena, Ranger's girlfriend, suffers blunt head trauma during the robbery, requiring evaluation and treatment alongside her partner's more severe injuries.
Also known as: Flatline
The drunk driver who hit Rox goes into asystole in the ER, creating ethical tension as the staff must treat him despite his role in injuring one of their own. He is successfully resuscitated.
Also known as: Cut
Sean, a rookie firefighter, sustains a laceration during training that requires treatment at Angels Memorial.
Also known as: Coughing up blood
Rox develops significant hemoptysis during her crisis, complicating her airway management before the Medevac transport to San Diego.