Final answer:
Subdural hematoma is often due to tearing of bridging veins, with symptoms frequently emerging within a day of the traumatic event.
Step-by-step explanation:
A subdural hematoma is typically caused by tearing of the bridging veins, and symptoms usually present within 24 hours of the accident. This type of injury involves the accumulation of blood between the dura mater and the arachnoid layer of the meninges in the brain. It can be caused by a variety of events, such as head trauma, that result in the vessels tearing and blood collecting underneath the dura.
When these veins tear, blood accumulates in the space between the brain and the dura mater, resulting in a subdural hematoma.
Symptoms of a subdural hematoma usually present within 48 to 72 hours of the accident. These symptoms can include headache, confusion, dizziness, slurred speech, and seizures.