The correct answers are A. Bradycardia and C. Unequal pupils.
Why A and C are correct:
These findings are classic indicators of increased intracranial pressure (ICP) and significant brain injury.
Part of Cushing’s Triad (late sign of increased ICP)
Indicates brainstem involvement and impending herniation
Suggests brain compression or herniation
Indicates pressure on cranial nerves (especially CN III)
NREMT-aligned guidance states:
“Signs of increased intracranial pressure include bradycardia and unequal pupils.”
“Changes in pupillary size and reactivity indicate neurologic deterioration.”
Why the other options are incorrect:
B. Hypotension: More indicative of shock, not isolated brain injury (brain injury often presents with hypertension, not hypotension).
D. Cold, clammy skin: Suggests hypovolemic shock, not brain injury.
E. Delayed capillary refill: Also indicates poor perfusion/shock, not specific to brain injury.
Exact Extracts:
“Increased intracranial pressure may present with bradycardia.”
“Unequal pupils are a sign of brain injury and possible herniation.”
“Cushing’s response includes bradycardia and hypertension.”
[References:, NREMT EMT Education Standards – Trauma (Head Injury), NREMT National Continued Competency Program (NCCP) – Neurologic Emergencies, Prehospital Emergency Care (EMT) – Head and Brain Injuries, ===================================, , , ]