A teenager returns from a ski trip in Colorado and presents to her pediatrician with several tender, red to purplish nodules on her toes. She states they appeared after several days of wearing cold, damp ski boots. The lesions are painful but not significantly pruritic, and the rest of her exam is normal. What is the most likely diagnosis?
A 9-year-old girl with a history of acute lymphoblastic leukemia and an indwelling central venous catheter presents with a fever of 39.2°C (102.6°F), a heart rate of 140 beats/minute, and a blood pressure of 85/40 mmHg. Her extremities are flushed and warm, with bounding peripheral pulses and a flash capillary refill. This presentation is most characteristic of which type of shock?
