https://www.vetnurse.co.uk/f/nonclinical-discussions/8041/urinary-colelction-systems what is the difference between the closed and open collection sytems? en-USTelligent Community 10https://www.vetnurse.co.uk/thread/78552?ContentTypeID=1Tue, 13 Apr 2010 19:30:29 GMT1a0763ec-3885-442c-853e-6cef656dfec5:395517a5-0631-43c0-8711-7439d431c7f0Maisy<p>Closed systems will have a joining giving set/collection bag attached to the urinary catheter. Urine output can be more closely monitored this way. The open method is to insert a catheter just to keep the urethra open, but this is more difficult to determine urine amount etc.</p><div style="clear:both;"></div>