**Core Concept**
Neurogenic shock is a type of shock that occurs due to a loss of sympathetic tone, resulting from a spinal cord injury, which disrupts the sympathetic nervous system's ability to maintain vascular tone. This leads to vasodilation, bradycardia, and decreased blood pressure.

**Why the Correct Answer is Right**
In neurogenic shock, the loss of sympathetic tone causes vasodilation, leading to hypotension. The bradycardia is a result of unopposed parasympathetic activity, as the sympathetic nervous system's ability to stimulate the heart is impaired. The decreased vascular tone also results in a reduced systemic vascular resistance.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is likely incorrect because neurogenic shock is not typically associated with increased heart rate, as the loss of sympathetic tone leads to bradycardia.

**Option B:** This option is incorrect because neurogenic shock is characterized by vasodilation, not vasoconstriction, leading to decreased blood pressure.

**Option C:** This option may be incorrect because neurogenic shock is not typically associated with an increase in cardiac output, as the decreased vascular tone and bradycardia can reduce cardiac output.

**Clinical Pearl / High-Yield Fact**
Remember that neurogenic shock is a diagnosis of exclusion, and other causes of shock, such as hemorrhagic shock, septic shock, and cardiogenic shock, must be ruled out before making this diagnosis.

**Correct Answer: None**