I work on a stepdown/floor unit, so our ratios vary depending on the # of stepdown pts... On day shift you can be 3 pt's/1 RN (with 2 SD pts), 4:1 (1 SD). On rare low-staffing occasions we may get 5...
We pretty routinely flush JP's on our floor... the ones put in for our agency have stopcocks on them, so we change the direction of fluid to toward the pt, clean the leur-lock, flush and then change...