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Related Experiment Video

Updated: Feb 16, 2026

Diffuse Reflectance Spectroscopy: Getting the Capillary Refill Test Under One's Thumb
06:50

Diffuse Reflectance Spectroscopy: Getting the Capillary Refill Test Under One's Thumb

Published on: December 2, 2017

9.7K

Diffuse Reflectance Spectroscopy: Getting the Capillary Refill Test Under One's Thumb.

Joakim Henricson1, Rani Toll John2, Chris D Anderson3

  • 1Department of Emergency Medicine, Local Health Care Services in Central Östergötland, Region Östergötland; Division of Drug Research, Department of Medical and Health Sciences, Faculty of Health Sciences, Linköping University; Joakim.Henricson@regionostergotland.se.

Journal of Visualized Experiments : Jove
|December 30, 2017
PubMed
Summary

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The capillary refill test estimates circulatory status but lacks standardization. This study explores diffuse polarization spectroscopy to establish more objective endpoints for this vital clinical assessment.

Area of Science:

  • Physiology
  • Medical Diagnostics

Background:

  • The capillary refill test (CRT) assesses circulatory status, commonly using a 2-second refill time after pressure.
  • Its clinical utility is debated due to subjective assessment and lack of standardization.
  • Poor skin perfusion indicated by slow CRT can signal sepsis, hypoperfusion, or hypothermia.

Purpose of the Study:

  • To detail the physiological process of capillary refill.
  • To propose objective endpoint values for CRT using diffuse polarization spectroscopy.

Main Methods:

  • Detailed observation of the capillary refill event.
  • Application of diffuse polarization spectroscopy for precise measurement.

Main Results:

  • Characterization of the refill event's dynamics.

Related Experiment Videos

Last Updated: Feb 16, 2026

Diffuse Reflectance Spectroscopy: Getting the Capillary Refill Test Under One's Thumb
06:50

Diffuse Reflectance Spectroscopy: Getting the Capillary Refill Test Under One's Thumb

Published on: December 2, 2017

9.7K
  • Identification of potential objective parameters for CRT assessment.

    • Conclusions:

    • Diffuse polarization spectroscopy offers a more objective method for evaluating capillary refill.
    • This technique may enhance the clinical value and reliability of CRT.