What does lumi-aggregation measure in platelet function tests?

Lumi-aggregation is a specific assay used in platelet function testing that measures both platelet aggregation and the release of adenosine triphosphate (ATP). This test is an integrated method, which allows for observation of the initial phase where platelets aggregate in response to various agonists, alongside the concurrent release of ATP, which indicates that platelets are functioning properly in their aggregatory and secretory roles.

The measurement of ATP release is crucial because ATP can provide information about the activation state of the platelets; its release can be indicative of granule secretion, which is an essential part of the platelet activation process. Therefore, by assessing both aggregation and ATP release, lumi-aggregation provides a comprehensive evaluation of platelet functional capacity.

In contrast, the other options focus on singular aspects of platelet function or are specific components that do not encompass the broader functionality measured by lumi-aggregation. This makes the choice of platelet aggregation and ATP release the accurate and more informative response in the context of what lumi-aggregation assesses.