A clinical evaluation of ADP -induced blood platelet aggregation function in patients with hyperaggregation and hypoaggregation was investigated with a comparision of ADP-titer test tube method (PAgT) and platelet aggregorrister method (PAM). Oar datd revealed that platelet aggregation rate (PAR) 15 more ssasitive and objective in hyperaggregative patients than platelet aggregation test (PAgT)

The whole prosess of aggregation was also well reflected by PAR

but the result is easily affected by lipsmie specimen. Nevertheless

PAgT is still sensitive to some patients and was not influenced by lipstnia

Tt’as simple and easy to control and need not special apparatus

so that it may be used as screening test in general practice. Three out of seven patients with liver cirrhosis ware hypoaggregation with PAR but normal with PAgT. It is therefore not suitable for patients with liver cirrhosis to detect blood platelet aggregation function with PAgT.