Which method is considered the easiest for obtaining an adequate sample of peripheral blood from the deceased?

The preferred method for obtaining an adequate sample of peripheral blood from the deceased is typically the subclavian puncture. This technique allows for direct access to the subclavian vein, which is a larger vessel, making it easier to obtain a sufficient volume of blood. The proximity to the heart also enhances the quality of the sample, ensuring it is representative of systemic circulation.

This method proves particularly effective because it minimizes the risk of hemolysis and facilitates the collection of blood that is less likely to be contaminated, compared to other methods. Additionally, the subclavian area has fewer surrounding structures that can complicate access, making it a practical choice in postmortem investigations.

The other methods outlined may present challenges or are less commonly utilized for this purpose due to various anatomical and procedural reasons, such as their invasiveness or the potential for complications. Therefore, the subclavian puncture stands out as the most effective and straightforward option for this particular context.