Phlebotomy Technician Practice Exam (NCPT/CPT) 2025 – 400 Free Practice Questions to Pass the Exam

If the tube is not mixed, it can lead to incomplete or inconsistent results because the sample may not be evenly distributed. This can especially affect assays or tests that require a small amount of sample, as unmixed blood or fluids can result in clots forming or samples not being representative of the overall specimen. While the other options may sound like favorable outcomes, they are not directly related to the impact of not mixing the tube. It is important to always follow proper protocol and mix tubes as required for accurate and reliable test results.