I am trying to find nursing research or standards for hanging piggyback meds with fluids that contain KCL. I was taught that nothing should be piggybacked with fluids containing KCL (ex. NS with 20 or 40mEq KCL). This is not the practice where I work and would appreciate feedback. I was told that it was OK to hang piggybacks with fluids with KCL as long as the piggyback was compatible. I was not just concerned with compatibility but also with flush after med is infused, irritation to vein from KCL and med(antibiotics), and the bolus that could occur should the roller clamp be left clamped. I would appreciate any feedback that you can offer regarding best practice. Thank you