Clients with a cervical or upper thoracic spinal cord injury may experience autonomic dysreflexia, an acute emergency, generally after the spinal shock wears off.
A trigger, typically bowel or bladder distension, that originates below the level of the neurological damage causes a rapid, exaggerated reflexive rise in blood pressure in vulnerable spinal cord injury patients is what is widely referred to as the autonomic dysreflexia syndrome. This will enable blood to accumulate in the lower extremities due to gravity, hence lowering blood pressure to avoid autonomic dysreflexia . When there has been a high cervical spinal cord injury, tetraplegia results in the paralysis of all extremities.
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