The below are open source tools and mostly available on GNU/Linux, and can run on other platforms too: 1  GeoGebra - open source software for dynamic geometry, algebra and calculus for middle/high school and college. Exports interactive web pages.  Kig[1] A GUI based geometry editor.
â¢ Before surgery, wait at least 24 hours after the last dose of LMW heparin is administered before a spinal/epidural catheter is placed. â¢ After surgery, when there is adequate surgical site hemostasis, for twice daily dosing, wait at least 24 hours after catheter removal before resuming therapeutic-dose LMW heparin.
Heparin: Traditionally, people have received heparin by IV into a vein in the hospital for about 5 to 7 days. But low-molecular-weight heparin is effective within hours, reducing complications and hospitalizations. You can give yourself injections of low-molecular-weight heparin at home, once or twice daily.