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Diabetic Exam
 
 
 
 
Diabetic Exam
Poor diabetic control may manifest in many different ways, with macrovascular and microvascular complications. The diabetic examination is useful for diagnosing these complications, particularly when it comes to the vascular and neurologic examination of the lower limb.
 

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
 
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