After completing this article, readers should be able to:

A 9-month-old girl presents to the emergency department (ED) with a 4-day history of profuse diarrhea and poor oral intake. On physical examination, she appears irritable. Her respiratory rate (RR) is 70 breaths/min, heart rate (HR) is 180 beats/min, and blood pressure (BP) is 80/50 mm Hg. She has cool, mottled extremities, with sluggish capillary refill and weak peripheral pulses. Is this just a case of dehydration or could this be shock?

A 17-year-old boy presents to the ED with a 1-day history of headache, general malaise, and fevers. On physical examination, he appears confused. He has a temperature of 39.9°C, HR of 120 beats/min, and BP of 85/28 mm Hg. His skin appears plethoric. His extremities are hot, with flash capillary refill and bounding pulses. Is this the same entity that is affecting the previous patient?

A 2-week-old boy presents...

You do not currently have access to this content.