Phlebotomy Nerds Teaching Center
Learn it clearly. Use it confidently.
A growing collection of practical phlebotomy lessons, quick-reference visuals, and professional reminders from your lead mobile phlebotomist.
Lesson 01
Blood Collection Tubes & Their Uses
Start with the tube color, then connect it to the additive, specimen type, and common laboratory use. This quick-reference lesson gives learners a colorful place to begin.
Tube colors, additives, test requirements, order of draw, and handling procedures may vary by manufacturer, laboratory, and facility. This page is an educational reference and does not replace current manufacturer instructions, laboratory requirements, an approved facility procedure, or supervised clinical training.
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