• coagulation
  • A small sample of blood is taken from the selected person and rotated gently through 4ยบ 45', six times a minute, to imitate sluggish venous flow and activate coagulation. (wikipedia.org)
  • clot
  • Four values that represent clot formation are determined by this test: the reaction time (R value), the K value, the angle and the maximum amplitude (MA). (wikipedia.org)
  • The R value represents the time until the first evidence of a clot is detected. (wikipedia.org)
  • The K value is the time from the end of R until the clot reaches 20mm and this represents the speed of clot formation. (wikipedia.org)