Final answer:
Epidural hematoma is caused by an arterial bleed near the pterion, resulting in a collection of blood between the brain and skull. Symptoms include transient loss of consciousness followed by a lucid period.
Step-by-step explanation:
Epidural Hematoma: Causes and Symptoms
Epidural hematoma is caused by an arterial bleed, specifically a damaged artery located near the pterion - a clinical landmark on the lateral side of the head. When a strong blow damages the artery, bleeding occurs and a collection of blood called a hematoma forms between the brain and the interior of the skull.
Symptoms of epidural hematoma typically include transient loss of consciousness (LOC) immediately following the injury, which is then followed by a lucid period.