Wondering how long other institutions hold pressure to the exit site when removing renal and also femoral lines. What do you consider an occlusive dressing? We use a sterile vaseline gauze, covered with a sterile 4x4 (folded) then covered with foam tape as a pressure dressing for 24 hours. Other areas consider a Tegaderm as an occlusive dressing although it is semipermeable. Appreciate any replies.