Table 1. Laboratory results during hospital admission.

Laboratory finding	Result	Reference range
Lupus anticoagulant	Not detected	Not detected
Anticardiolipin antibodies	<2 U/mL	<20 U/mL
Beta-2 glycoprotein antibody	<2 U/mL	<20 U/mL
Protein C activity	132%	70-180% normal
Protein S activity	73%	70-150% normal
Antithrombin III activity	94%	80-135% normal
Factor II activity	113%	70-150% normal
Factor V activity	106%	65-150% normal
Lactate dehydrogenase	329 U/L	91-200 U/L
Partial thromboplastin time	30 seconds	26-39 seconds
Prothrombin time	11.9 seconds	10.5-14.1 seconds
International normalized ratio	0.98	0.88-1.15