You see yellow top blood tubes in labs and hospitals all the time. They are critical for the collection and preservation of blood samples for testing. If you work in a lab or research medical lab technology, you will regularly see this tube. In this article, we explain simply what yellow top blood tubes are, what they contain, how they are used, and how to select the proper manufacturer. If you want to know about yellow top blood tube usage, yellow top tube additives, or a blood collection tubes manufacturer guidance, this article can help you get a clear understanding.