A nurse in an urgent care clinic is caring for an infant who presents with vomiting, diarrhea, and decreased oral intake. Which of the following manifestations should the nurse expect?

A. Bulging anterior fontanel. A bulging fontanel is associated with increased intracranial pressure, not dehydration. Dehydration is more likely to cause a sunken fontanel. B. Decreased temperature. Dehydrated infants typically exhibit normal or elevated temperatures, especially if they have an underlying infection or fever. A decreased temperature is not a common sign of dehydration. C. Hypertension. Dehydration more commonly leads to hypotension or normal blood pressure, depending on severity. Hypertension is not an expected finding in an infant with fluid volume loss. D. Oliguria. Decreased urine output (oliguria) is a classic and expected sign of dehydration in infants. It indicates the kidneys are conserving fluid due to inadequate intake and fluid loss from vomiting and diarrhea.