Correct option is A
Sol. Capillary refill time (CRT) is an important clinical indicator to assess peripheral perfusion in children. Normally, the capillary refill time should be less than 3 seconds when the skin is warm. It’s measured by pressing the nail bed or sternum until it blanches and observing how fast color returns. A delayed CRT may indicate circulatory shock, dehydration, or hypovolemia. It is widely used in pediatric emergency triage for quick assessment of hemodynamic status.
Explanation of each option:
· (a) Less than 3 secs – Correct Answer. Indicates normal circulatory status and adequate perfusion to extremities. Used routinely in pediatric assessments.
· (b) More than 3 secs – Suggests inadequate blood flow, often a sign of early shock or fluid loss; requires immediate evaluation.
· (c) Less than 1 sec – Still within normal limits, but the standard clinical threshold for normal CRT is <3 seconds, not <1 second specifically.
· (d) 5 secs – Clearly abnormal; suggests critical circulatory failure. If seen, urgent intervention such as IV fluids or vasopressors may be required.