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. 2023 Sep 2;7(6):102197. doi: 10.1016/j.rpth.2023.102197

Table 2.

Clinical measurements of transgender patients.

Laboratory test Reference range Patient #1 Patient #2 Patient #3
Prothrombin time 10-13.2 seconds 10.8
Activated partial thromboplastin time 26-38 seconds 31 26
D-dimer 0-500 ng/mL fibrinogen equivalent units 385 394 33791→496→428
Fibrinogen 200-450 mg/dL 244 356 649→541
Fibrinogen antigen 180-350 mg/dL 409
PAI-1 activity 0-27 International Units/mL 22 26 <4
PAI-1 antigen 4.0-43.0 ng/mL 37
Alpha2-antiplasmin 80-150% 133 124 117
Antithrombin activity 75-135% 110
Antithrombin antigen 72-124% 88
Factor II G20210A mutation Normal Normal
Factor V Leiden mutation Normal Normal
Protein S, Free (LC) 57-157% 101
Protein S, total (LC) 60-150% 120
Protein S, functional (LC) 63-140% 108
Protein C 70-140 % activity 67→51
Anti-β2 glycoprotein 1 Ab IgM 0-32 β2 GP1 IgM units <9→<9 <9
Anti-β2 glycoprotein 1 Ab IgG 0-20 β2 GP1 IgG units <9→<9 <9
Anti-β2 glycoprotein 1 Ab IgA 0-25 β2 GP1 IgA units <9→<9 <9
Anti-cardiolipin Ab IgM 0-10 phospholipid units 18→16 <10
Anti-cardiolipin Ab IgG 0-10 phospholipid units <10→<10 <10
Anti-cardiolipin IgA 0-10 phospholipid units <10→<10 <10
partial thromboplastin time (Lupus anticoagulant) 0-51.9 seconds 30.6
dRVVT (LC) 0-47.0 seconds 45.1
Lupus anticoagulant Interpretation (LC) Not detected Not detected
Homocysteine 3.2-10.7 μmol/L 7.3 10
Lipoprotein A <=75.0 nmol/L 16.3 32.4
Erythrocyte sedimentation rate 0-30 mm/hr 24→20 <1
C-reactive protein 0-9.99 mg/L 8.61→8.57 2.82
Total cholesterol 135-200 mg/dL 222 148 150
Low density lipoprotein 0-110 mg/dL 144 67 54
High density lipoprotein 35/80 mg/dL 35 34 37
Triglycerides 0-150 mg/dL 244 430 73
Hemoglobin A1c 3.6-5.7% 5.6 8.6 5.9

Arrows represent repeated measurements. Patient 2 underwent repeat diagnostics 3 months apart. For patient 3, D-dimer was measured at the time of pulmonary embolism, then 1 and 11 months later; fibrinogen levels were measured 24 hours apart in the week following the pulmonary embolism; Protein C was first measured a month after the pulmonary embolism, and then 10 months later.

Ab, antibody; dRVVT, dilute Russell viper venom test; LC, liquid chromatography; PAI-1, plasminogen activator inhibitor-1.