capillary refilling

capillary refilling

the process whereby blood returns to a portion of the capillary system after its blood supply has been interrupted briefly. Capillary refilling is tested by pressing firmly on a fingernail and estimating the time required for blood to return after pressure is released. In a normal person with good cardiac output and digital perfusion, capillary refilling should take less than 3 seconds. A time of more than 3 seconds is considered a sign of sluggish digital circulation, and a time of 5 seconds is regarded as abnormal.
References in periodicals archive ?
After reduction, radial pulse was absent but capillary refilling was present.
Physical examinations revealed normal heart rate, pulse rate, capillary refilling time, respiration rate and color of mucous membrane.
Her radial pulse was feeble, and blood pressure was unrecordable, capillary refilling time was 5 seconds, and extremities were cold.