When assessing a patient's shock status, mucus membrane (MM) color and capillary refill time (CRT) are often evaluated. What is a normal capillary refill time?

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Less than 2 seconds is a normal capillary refill time (CRT). In order to evaluate CRT, distal pressure is applied to the gum or inner lip and the time it takes pink color to return is counted. Animals that are in shock exhibit pale mucus membranes and delayed capillary refill times.

When Assessing a Patient's Shock Status, Mucus Membrane (MM) Color