For patients under 3 years old, which vital sign should be documented instead of blood pressure?

For patients under 3 years old, which vital sign should be documented instead of blood pressure?

• A. Capillary refill
• B. Heart rate
• C. Respiratory rate
• D. Temperature

Answer: (A)

Capillary refill is used as a quick check of peripheral perfusion in babies and toddlers. In children under 3, obtaining an accurate blood pressure can be difficult because of cuff size, cooperation, and technique, so documenting perfusion status with capillary refill provides a practical surrogate for circulatory status. A normal capillary refill is usually under 2 seconds; a delayed refill signals possible poor perfusion or shock and helps guide urgent treatment. While heart rate, respiratory rate, and temperature are important, they don’t replace the need to assess perfusion when BP isn’t reliably obtainable.

Capillary refill is used as a quick check of peripheral perfusion in babies and toddlers. In children under 3, obtaining an accurate blood pressure can be difficult because of cuff size, cooperation, and technique, so documenting perfusion status with capillary refill provides a practical surrogate for circulatory status. A normal capillary refill is usually under 2 seconds; a delayed refill signals possible poor perfusion or shock and helps guide urgent treatment. While heart rate, respiratory rate, and temperature are important, they don’t replace the need to assess perfusion when BP isn’t reliably obtainable.