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Table 1 Abnormal laboratory parameters

From: Cerebral venous sinus thrombosis associated with thrombocytopenia post-vaccination for COVID-19

Parameter Patient’s values Normal values
Platelets (109/L) 20 150–400
Fibrinogen (mg/dL) 98 150–450
D-dimer (ng/mL) > 10,000 < 500
C reactive protein (mg/L) 17.6 < 5
Coagulation factor XIII (%) 35 70–150
Methylenetetrahydrofolate reductase (MTHFR) mutation (C677T) Heterozygous Absent
Homocysteine (μmol/L) 16.7 < 12
Folic acid (ng/mL) 0.9 3.9–26.8