The Sodium Citrate PET Tube is a versatile tool utilized in blood analysis, serving a dual function by accommodating both blood coagulation tests and blood storage. It is designed to maintain a specific mixing ratio, requiring the combination of one part citrate with nine parts of blood, ensuring accurate test results. Moreover, its innovative double-deck design includes extra dead space, which proves invaluable for monitoring tests. This feature allows healthcare professionals to closely observe and manage the samples during the analytical process, enhancing the precision and reliability of the results. In essence, the Sodium Citrate PET Tube is a multifaceted instrument that aids in the execution of blood coagulation assessments and provides a secure environment for blood storage, ultimately contributing to the quality and efficacy of medical diagnostics and research.