TABLE 4.

Advantages and disadvantages of platelet function vs. CYP2C19-directed genetic testing, modified after Sibbing et al. (34).

	PFT	Genetic testing
Availability of different assays	Yes	Yes
Absence of interassay variability	No	Yes
No need to perform on-treatment	No	Yes
Assessment of non-genetic factors	Yes	No
Direct measurement of treatment response	Yes	No
Absence of temporal variability	No	Yes

PFT, platelet function testing.