For 6-12 (or more) weeks after a spinal cord injury, patients experience spinal shock while the spinal cord heals from the injury. Patients with lesions at T6 are prone to autonomic dysreflexia due to neurogenic bladder. If the bladder becomes too full, the patient may experience headache, diaphoresis, hypertension, and bradycardia. Therefore, the nurse should first ensure the urinary catheter is not kinked and is draining appropriately. A rapid response or surgery is not necessary. Administering morphine may mask the symptoms of autonomic dysreflexia.