F2 and deep vein thrombosis: ABC, airway breathing circulation; ECG, electrocardiogram; CBC, complete blood count; PT, prothrombin time; INR, international normalized ratio; aPTT, activated partial thromboplastin time; CT scan, computerized tomography scan; MRI, magnetic resonance imaging; IV tPA, intravenous alteplase; DVT, deep vein thrombosis.