What Color Tube For CBC? | Blood Collection Tubes | US Phlebotomy Exam Practice Question

What color tube is used for a CBC (Complete Blood Count)? In this video, we break down this essential blood collection tube question that appears on the NHA, ASCP, & NCCT US Phlebotomy Certification Exams. ✅ Learn the correct tube color for a CBC ✅ Understand why EDTA is the anticoagulant used ✅ Review all 4 answer options with full explanations ✅ Build confidence for your phlebotomy certification exam 🩸 The Answer: The lavender (purple) top tube contains EDTA, which prevents clotting by binding calcium — preserving blood cells for an accurate count and WBC differential. Whether you're preparing for the NHA CPT, ASCP PBT, or NCCT NPCT phlebotomy certification exam, these practice questions are designed to help you pass your US phlebotomy certification on the first try. 📌 Watch more Blood Collection Tubes US Phlebotomy Certification Exam Practice Videos: https://www.youtube.com/playlist?list=PL_kK43ujUiC7RmJVoF4ccIWm9utgA1MEK 🔔 Subscribe for more phlebotomy exam practice questions, tube color guides, order of draw tips, and study strategies. #Phlebotomy #PhlebotomyExam #BloodCollectionTubes #CBC #PhlebotomyStudy