🚨Capillary Refill Time⏰ This is the best and most easily available microcirculatory surrogate for perfusion. We can't tell what the renal, gut, brain, and liver perfusion is doing by looking at the patient - but by simply examining the cap refill time we can get a pretty good estimate. 👍Normal: 2 seconds or less I check fingers: press lightly for 10 seconds until blanching then release. Use a glass slide if available. | Cardiophilia