Phlebotomy Technician Practice Exam 2025 (NCPT/CPT) – Comprehensive All-in-One Guide for Exam Success!

A short sample in a serum clot tube does not have any effect as it will still be able to clot and separate the serum from the blood cells. However, if the sample is too short, it may not provide enough volume for all necessary tests to be performed, which can lead to inaccurate results. Additionally, a short sample may also require resampling, which can be inconvenient for the patient. Therefore, while it does not cause contamination or affect the clotting process, a short sample may have other negative consequences in terms of obtaining accurate and sufficient results.