Soru

An emergency department physician evaluates a patient presenting with severe, unrelenting mid-back pain that has progressively worsened over the past week. The patient, who has a history of type 2 diabetes mellitus and injection drug use, now reports new-onset bilateral leg weakness and an inability to urinate for the past $6 \text{ hours}$. Vital signs show a temperature of $38.9^\circ\text{C}$ ($102.0^\circ\text{F}$), heart rate of $110/\text{min}$, and blood pressure of $130/80\text{ mmHg}$. Physical examination demonstrates tenderness to percussion over the thoracic spine, $3/5$ motor strength in both lower extremities, and absent deep tendon reflexes at the knees and ankles. A bedside bladder ultrasound reveals a post-void residual volume of $600\text{ mL}$.

Arrange the following management steps in the most appropriate chronological sequence for this patient.