Final answer:
The correct order of draw for a CBC, blood culture, and metabolic panel is light blue stopper, followed by gold, then red, corresponding to the option '3) Light blue, gold, red'.
Step-by-step explanation:
When collecting a CBC (Complete Blood Count), blood culture, and metabolic panel, it is imperative to follow the correct order of draw to prevent cross-contamination of additives between the tubes. The correct order for the tubes will be:
- Light blue - for coagulation tests, contains sodium citrate which is a coagulant.
- Gold - for serum tests, contains a gel separator and clot activator.
- Red - for serology and immunology tests, usually has no additive or may have a clot activator.
Therefore, the correct option would be
3) Light blue, gold, red
.