A nurse is admitting an infant who has severe dehydration from acute gastroenteritis. Which of the following findings should the nurse expect?

Rationale: A. Bradypnea is not typical in dehydration; tachypnea may occur due to metabolic acidosis or compensatory mechanisms. B. A sunken anterior fontanel is a classic sign of severe dehydration in infants, reflecting fluid loss and decreased tissue turgor. C. 13% weight gain is inconsistent; dehydration results in weight loss, not gain. D. Capillary refill of 2 seconds is within normal limits; severe dehydration typically presents with prolonged capillary refill (>2 seconds), indicating poor perfusion.