A quick-reference guide summarizing the association between blood collection tube colors and their corresponding laboratory tests facilitates efficient and accurate specimen collection. For example, a lavender-topped tube containing EDTA is typically used for complete blood counts, while a light blue-topped tube with sodium citrate is used for coagulation studies. These guides often include information on additives present in each tube, appropriate sample volumes, and common tests performed.
Proper utilization of these resources minimizes pre-analytical errors, ensuring sample integrity and reliability of test results. Historically, standardization of tube colors and additives has evolved to improve patient safety and laboratory efficiency. This standardization reduces the risk of misidentification and ensures compatibility with analytical instruments, ultimately contributing to better patient care.
