EMT Patient Assessment Practice Test

With regard to the assessment of a patient’s cardiovascular status, capillary refill time is MOST reliable in:

Adults Elderly Children who are younger than 6 years of age Infants

Correct Answer:

Children who are younger than 6 years of age

Explanation:

Capillary refill time is a quick bedside check of peripheral perfusion. Its reliability depends on age because factors that affect refill vary across the lifespan. In children younger than six, the microcirculation is more consistent and less confounded by vascular disease or degenerative changes, so the time it takes for color to return after blanching reflects real perfusion status more reliably. In adults and the elderly, atherosclerosis, vascular disease, poor skin perfusion, and temperature effects can make refill time less dependable as a sole indicator. In infants, immature circulation and environmental or physiological factors can also introduce variability. For these reasons, capillary refill time is most reliable in young children under six.

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