Which of the following tubes should be drawn first?

Question

Quizplus · Accepted Answer

The correct order of draw for blood tubes in phlebotomy starts with the blood culture bottle or yellow tube (if using the order for microbiology), followed by the coagulation tube (light blue), then the serum tubes with or without clot activator, with or without gel (red, gold, or tiger top), and so on. The red tube, typically used for chemistry tests that require serum, is drawn before tubes with additives like the green, lavender, and gray tubes, which are used for chemistry tests on plasma, hematology, and glucose testing, respectively. This order is designed to prevent cross-contamination of additives between tubes that could affect test results.

Which of the Following Tubes Should Be Drawn First