Liam, a 4-year-old boy, brought to the clinic by his mother. He has had a fever for 3 days and has been refusing to drink fluids for the past 12 hours.
Liam's mother reports he has been lethargic today, has not urinated since this morning, and feels very warm to touch.
Liam is brought to the clinic. He is lethargic but arousable. His temperature is 39.5°C (103.1°F), heart rate is 130, capillary refill is 3 seconds, and his mucous membranes are dry. What is your initial assessment?
"Mommy... I don't feel good."