<prompt> Hypotension in acute spinal injury is due to:Loss of sympathetic toneLoss of parasympathetic toneOrthostatic hypotensionVasovagal attack  <response>: High spinal cord injuries can also result in systemic hypotension because of loss of sympathetic tone. The patient will usually have hypotension and relative bradycardia and will show evidence of good peripheral perfusion on physical examination. The term neurogenic shock is used but is somewhat of a misnomer because these patients are typically hyperdynamic, with high cardiac output secondary to loss of sympathetic vascular tone.Treatment Hypotension associated with high spinal injury can be treated by alpha-agonist phenylephrine. 