Post Test Leg Ulcer and Compression Day Post Test This is attempt (1/3) A venous leg ulcer (VLU) is the least severe form of chronic venous insufficiency. True False The majority of VLUs recur within __________. 6 months 12 months 18 months 24 months Stiffness is the force created by resistance of the textile to expansion. Stiffness Index (SI) is measured by the difference between ___________. Working pressure (WP) – Resting pressure (RP) Interface pressure (IP) – Resting pressure (RP) Ninety percent of interstitial fluid is reabsorbed by the venous system. True False Previous