If you look at a phlebotomy tray right now, chances are you will find a ubiquitous ingredient: The Purple Top Tube. Is it safe? Why is it there? And, most importantly, how do we ensure accurate results? This article https://nannierjvp714935.blogdanica.com/39339619/lavender-top-edta-tubes-k2-vs-k3-edta-the-difference