Capillary Refill Time | Diabetic Exam - MedSchool
Sign up to start your free trial of MedSchool Premium!Get Started
 
 
 
Diabetic Exam
 
 
Diabetic Exam
Capillary refill time is a marker of perfusion, and prolonged refill time suggests poor perfusion of the area being examined.
 

Capillary Refill Time

 
 

Overview

  • Capillary refill time is a marker of perfusion, and prolonged refill time suggests poor perfusion of the area being examined.
    • How to Assess

    • Apply pressure to the nail bed until it blanches, release and measure the time taken for colour to return.
    • Abnormal If

    • >2 seconds
    • Causes of Prolonged Capillary Refill Time

    • Shock
    • Dehydration
    • Decreased peripheral perfusion
    • Note

    • Capillary refill time (CRT) is a useful test in children, though has little clinical utility in adults due to its variability with age, sex, ambient temperature among many other factors.
Last updated on November 28th, 2019
 
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 
Feedback