During autonomic dysreflexia in a patient with a thoracic spinal cord injury, which action is most appropriate first?

• A. Loosen the patients pants
• B. Lie the patient flat on a mat table
• C. Clamp the patient's urinary catheter
• D. Apply an abdominal binder to the patient

Answer: (A)

When autonomic dysreflexia occurs, a noxious stimulus below the level of injury triggers a surge of sympathetic activity that can dangerously raise blood pressure. The quickest way to stop this cascade is to remove the triggering stimulus. Tight or constrictive clothing is a common culprit, so loosening the patient’s pants directly eliminates a source of irritation and helps reduce sympathetic input right away.

After this initial relief, it’s important to position the patient upright to use gravity to help lower blood pressure, and then investigate other triggers such as bladder distension or stool impaction, addressing them as needed. Actions that increase constriction or worsen bladder distension should be avoided, and if blood pressure remains high after removing constriction and addressing triggers, further medical management is warranted.