Emergency Medical Technician (EMT) Intermediate Practice Exam

Which of the following findings is LEAST suggestive of a head injury?

1. Briskly constricting pupils when exposed to light

2. Unconsciousness

3. Clear fluid draining from the nose

4. Altered level of consciousness

The correct answer is: Briskly constricting pupils when exposed to light

Briskly constricting pupils when exposed to light is considered least suggestive of a head injury because it typically indicates normal or healthy function of the pupillary response mediated by the brainstem. In the context of head injuries, abnormal pupil reactions such as unilateral dilation or non-reactivity are more indicative of possible brain damage or increased intracranial pressure. Unconsciousness, clear fluid draining from the nose (which can suggest cerebrospinal fluid leakage), and altered levels of consciousness are all significant indicators that raise concern for head injuries. These findings reflect compromised neurological function or damage that can arise from trauma to the head, making them more suggestive of injury than the normal pupillary response described.