MS-3778
You are working in the emergency department when a 78-year-old female is brought in having been found on her bedroom floor in the morning by her carers. She has a recent diagnosis of dementia but her carers report her to seem much more muddled than usual. Her past medical history includes atrial fibrillation and hypertension. Her medications include ramipril, warfarin, and colecalciferol. A CT scan of her head is done which confirms the diagnosis of subdural hemorrhage.
What is the most likely cause of this abnormality?