Name: David Ramirez Age: 29 years Gender: Male Mechanism of injury: High-speed MVA, front-end collision; unrestrained driver EMS reports that the patient was found unconscious, slumped over the steering wheel. Airbag deployed. Windshield starred. No obvious external bleeding. EMS noted: Initial GCS 9 (E2 V2 M5) Hypotension that briefly improved after fluid bolus Worsening level of consciousness en route One episode of projectile vomiting Pupils unequal (R 5 mm sluggish, L 3 mm reactive) During transport, the patient extended both arms and legs rigidly in response to painful stimulus. PAST MEDICAL HISTORY No chronic illnesses reported No previous neurological issues Prior appendectomy Occasional alcohol use (friends stated he had "two beers earlier") Medications None prescribed Midline shift of 7 mm Signs of brain herniation Cerebral edema C-Spine CТ No fracture noted, but swelling present The patient suddenly extends his arms and legs rigidly after painful stimulation. What does this indicate?