What is the importance of order of draw?

The order of draw is crucial in phlebotomy to prevent cross-contamination between blood collection tubes, which can lead to inaccurate test results. Different additives in the tubes can react with each other if drawn out of order, potentially affecting the chemistry of the samples. Following the correct sequence ensures the integrity of the specimens and enhances the reliability of laboratory analyses. Adhering to this protocol ultimately helps in delivering accurate diagnoses and effective patient care.