Final answer:
The correct answer to the student's question is option 2) Decreased heart rate and absent motor function below the level of injury, which are symptoms of bradycardia when paired with neurological damage such as a stroke or spinal cord injury.
Step-by-step explanation:
Bradycardia is the condition in which the resting heart rate (HR) drops below 60 beats per minute (bpm). When bradycardia is accompanied by absent motor function below the level of injury, this typically indicates a neurological issue, potentially from a stroke or spinal cord injury. The symptoms in question, therefore; are a decreased heart rate and absent motor function below the level of the affected area.
This aligns with option 2) Decreased heart rate and absent motor function below the level of injury. Relative bradycardia may occur when a patient experiences symptoms of bradycardia despite a normal HR. It's essential to address the underlying causes of bradycardia, such as endocrine system pathologies, metabolic disorders, or neurological issues, to manage the condition effectively.