What must be considered regarding the order of blood sample collection?

Choosing to focus on the order of blood sample collection, it is essential to understand that carryover between tubes can significantly affect test results. Each tube is designed to contain specific additives or anticoagulants tailored for particular tests. If blood is drawn into one tube without considering the order, remnants of the previous tube’s additive can contaminate the next sample. This contamination could lead to erroneous results, as certain tests, like those measuring electrolytes or coagulation factors, are particularly sensitive to the presence of such substances.

By adhering to a specified order of collection, phlebotomists can minimize this risk, ensuring the integrity of the samples collected and the accuracy of the test results. Prioritizing this aspect is crucial for maintaining proper laboratory protocols and delivering reliable patient diagnoses.