Why is the order of draw important?

The order of draw is crucial in phlebotomy to prevent cross-contamination between different blood collection tubes, which can lead to inaccurate test results. Each tube contains specific additives that can interfere with tests if mixed improperly. Following the correct order ensures that anticoagulants and other additives do not contaminate samples meant for serum or other specific tests. Adhering to this protocol helps maintain the integrity and reliability of laboratory results.