How To Flush A Catheter With Saline. The best way to do this is to pour the saline or distilled water into a clean container to draw into the syringe; Unscrew the heparin syringe from your catheter.
If you can’t get the fluid (urine) out of the tube, try lying on. The belief that 'only pure water should be used for filling the balloon of the foley catheter , because normal saline can result in crystal formation ending up in blockage of balloon channel' is not backed up by good evidence. Disinfectant supplies (such as chlorhexidine wipes) for cleaning the top of the catheter.