Which of the following is an early sign of poor perfusion in a child with normal blood pressure?

• A. Bounding pulses
• B. Normal mental status
• C. Warm extremities
• D. Altered mental status

Answer: (D)

In children, blood pressure can stay normal while perfusion to vital organs, especially the brain, begins to fall. The brain is very sensitive to reduced blood flow, so changes in mental status appear early. Altered mental status—such as restlessness, irritability, or confusion—signals cerebral hypoperfusion even when the blood pressure looks normal.

Bounding pulses and warm extremities suggest that perfusion is still adequate, while a normal mental status would imply the brain is still being perfused well. Late signs would come as perfusion worsens, but the first hint in this scenario is altered mental status.