What type of tests are performed using the green top tube?

The green top tube is primarily used for stat chemistry tests due to its sodium heparin anticoagulant, which helps in preventing blood coagulation. This property is especially beneficial for various chemistry tests that require serum or plasma samples. The tube's design allows for immediate processing and results, which is critical in emergency situations where timely information can significantly impact patient outcomes.

The rapid processing capability of the green top tube makes it ideal for tests assessing electrolyte levels, cardiac markers, and other crucial metabolic parameters. In contrast, the other test categories, while important, typically utilize different tubes or processes, making them less suitable for use with a green top tube. This characteristic reinforces the green top tube's specific role in the laboratory for fast, accurate chemistry analyses.