Does anyone have a protocol or reference indicating the acceptable timeframe that IV Fluids need to be stopped prior to drawing labs from same arm? This would also be for drawing labs from CVC w/IVF's infusing. Our hospital lab has a policy stating that IV fluids/medication drips need to be stopped for 10 minutes prior to lab draw with I feel is old practice as well as not always possible with certain drips. Our IVT practice is to stop all fluids/clamp lines for 1-2 minutes, draw 5 to 10 ml waste, draw labs, flush line manually with 10-20 ml saline, & resume IVF. I need some backing to support our current IVT practice.