Table 1.

Laboratory examinations.

Marker	Method
D-dimers	STA LIA-test® D-DI (Diagnostica Stago) Normal values: <0.5 mg/l
Factor VIII	DG-F VIII (Grifols) APTT (C.K. PREST, Diagnostica Stago) Normal values: 50-150% of the factor activity
sP-selectin	ELISA method (R&D Systems) Normal values: 82 ± 31 ng/ml

APTT - activated partial thromboplastin time; ELISA - enzyme-linked immunosorbent assay; LIA - isoturbidimetric method