Table 1.

Platelet Aggregation Study

Test	Present	Absent
Low dose ADP aggregation	X
High dose ADP aggregation	X
Release of ATP from dense granules with low dose ADP		X
Release of ATP from dense granules with high dose ADP	X
Low dose collagen aggregation	X
High dose collagen aggregation	X
Release of ATP from dense granules with low dose collagen		X
Release of ATP from dense granules with high dose collagen		X
Release of ATP from dense granules with thrombin		X
Arachidonic acid aggregation	X
Release of ATP from dense granules with arachidonic acid		X
Low dose ristocetin agglutination		X
High dose ristocetin agglutination	X
Low dose platelet rich plasma epinephrine aggregation	X
Release of ATP from dense granules with low dose epinephrine		X
Release of ATP from dense granules with high dose epinephrine		X

ADP = adenosine diphosphate

ATP = adenosine triphosphate