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. 2020 Jun 18;194:42–44. doi: 10.1016/j.thromres.2020.06.026

Table 1.

Coagulation profile in critically ill COVID-19 patients.

Patient 1 Patient 2 Patient 3 Patient 4 Reference range
Age (years) 77 68 42 68
BMI 38.1 26.1 26.1 27.8
Day of illness 4 5 4 4
SOFA score 12 11 12 11



Thromboplastin time (%) 65 88 47 88 70–130
aPTT (s) 37 62 69 51 25–37
Fibrinogen (mg/dL) 741 380 639 707 190–498
Antithrombin-activity (%) 49 54 101 51 80–128
D-dimer (ng/mL) 3315 12,639 13,221 4159 <500
Platelets (103/μL) 391 172 251 174 146–328



Factor II (%) 61.7 47.6 51.4 65.7 75–129
Factor V (%) 98.2 96 121.4 163.4 80–148
Factor VII (%) 57.1 73.7 24.2 68.4 48–148
Factor VIII (%) 339.6 73.7 261.8 339.5 48–139
Factor IX (%) 150.8 106.1 130 97 68–133
Factor XI (%) 64 51 60 82 69–144
Factor XII (%) 34.8 29.8 32.1 47.4 66–146
Factor XIII (%) 120.9 39 58.8 46.3 70–155



v. Willebrand antigen (%) >600 >600 >600 536 60–150



Protein C-activity (%) 53 59 87 65 >72
Free protein S-antigen (%) 55 48 45 37 68–116



DRVVT screen (s) 53.8 42.6 54.7 49.6 28.4–45.8
DRVVT ratio 1.19 1.20 1.19 1.22 0.93–1.40
Lupus sensitive PTT (s) 35.9 35.4 58.1 33.6 23.1–38.4
Anti-cardiolipin IgM (U/mL) 2.7 10.3 <1.0 1.7 <20
Anti-cardiolipin IgG (U/mL) 6.7 3.9 4 6.4 <20
Anti-ß2-glykoprotein IgM (U/mL) 1.7 1.1 <1.1 <1.1 <20
Anti-ß2-glykoprotein IgG (U/mL) <6.4 7.7 <6.4 <6.4 <20



ADAMTS-13 (%) activity 36 19 36 28 40–130
PAI-Ag (ng/mL) 36.2 >62.4 10.9 >62.4 7–43
Factor V-mutation Wild type Wild type Wild type Wild type
Factor II-mutation Wild type Wild type Wild type Wild type

BMI: body-mass-index; SOFA score: sepsis-related organ failure assessment score; aPTT: activated partial thromboplastin time; DRVVT: diluted-Russel-Viper-Venom-Test; PAI: plasminogen activator inhibitor; AT levels are pre-substitution values.