Table 2.

Usefulness of CWA-APTT or sTF/FIXa for the evaluation of hemostatic abnormalities

Parameter	Result	Diseases or physiological state
Abnormal waveform	Positive	Deficiency of clotting factor, inhibition of clotting factor, DIC, liver dysfunction, or anticoagulant therapy
Peak time	Prolongation	Hypocoagulability
	Shortening	Hypercoagulability
Peak height	Decrease	Hypocoagulability
	Increase	Hypercoagulability
Peak width	Enlargement	Hypocoagulability
	Shortening	Hypercoagulability

Abbreviations: CWA, clot waveform analysis; APTT, activated partial thromboplastin time; sTF/FIXa, small amount of tissue factor-induced clotting factor IX activation; DIC, disseminated intravascular coagulation.