Final answer:
Purple top tubes are typically used to collect plasma for a stat chemistry specimen. They contain an anticoagulant called K2EDTA, which prevents the blood from clotting.
Step-by-step explanation:
The tubes that would typically be used to collect plasma for a stat chemistry specimen are purple top tubes. These tubes contain an anticoagulant called K2EDTA, which prevents the blood from clotting and allows for the separation of plasma from the other components of blood.
Additionally, the use of centrifugation is necessary to obtain plasma from the collected blood sample. The centrifuge spins the tubes at high speeds, causing the components of the blood to separate based on their densities. The plasma, which is the liquid component of blood, can then be collected for further analysis.