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. Author manuscript; available in PMC: 2013 Sep 1.
Published in final edited form as: Thromb Haemost. 2012 Jul 26;108(3):516–526. doi: 10.1160/TH12-05-0355

Table 1. Summary of screening tests.

Coagulation Tests Normal range Patienta
aPTT (sec) 25.2 – 36.2 29.6, 31.9
Prothrombin Time (sec) 10.1 – 12.6 11.9, 12.2
Thrombin Time (sec) 13.4 – 18.0 18.2, 22.6
Reptilase Time (sec) 15.0 – 19.2 21.3
Functional fibrinogen (Clauss, mg/dL) 208 – 409 162
Fibrinogen antigen (mg/dL) 150 – 375 148
Functional fibrinogen (clot weight(55), mg/dL) 330b 170
von Willebrand factor antigen (% of normal) 56 – 223 147
von Willebrand factor activity (% of normal) 50 – 204 140
FVIII activity in blood draw 1 (% of normal) 54 – 161 163
FVIII activity in blood draw 2 (% of normal) 100c 225
FVIII activity in blood draw 3 (% of normal) 100c 225
Antithrombin III (% of normal) 88 – 133 97
PFA-100: collagen and epinephrine (sec) 84 – 178 >300, 132d
PFA-100: collagen and ADP (sec) 60 – 107 119, 119d
Chemistry Tests
alanine transaminase (U/L) 15 – 48 24, 25, 22
aspartate aminotransferase (U/L) 14 – 38 25, 21, 27
Cholesterol (mg/dL) 100 – 199 220, 251, 192
Triglycerides (mg/dL) 1 – 149 55, 85, 54
a

Multiple values are from separate blood draws

b

Fibrinogen concentration in NPP

c

FVIII activity in NPP

d

First PFA-100 was on aspirin, second was off aspirin for 2 weeks