Normal capillary refill time in children is ___________.

• A. Greater than 2 seconds
• B. ≤ 2 seconds
• C. 2-4 seconds
• D. ≤ 1 second

Answer: (B)

Capillary refill time measures how quickly blood returns to the skin after blanching a small area, usually the fingernail bed. In children, a normal refill is two seconds or less. This threshold is used because healthy peripheral perfusion restores color promptly, typically within about two seconds. If the refill takes longer than two seconds, it suggests reduced peripheral perfusion and can indicate dehydration, shock, or poor cardiac output needing prompt assessment.

To test it, press firmly on the nail bed until it blanches, then release and count how many seconds until color returns. Be mindful that factors like cold environments, lighting, nail polish, or skin tone can affect readings, and some healthy children may have a refill near or slightly below two seconds. Overall, two seconds or less is considered normal.