From: Autonomic dysreflexia in a tetraplegic patient due to a blocked urethral catheter: spinal cord injury patients with lesions above T-6 require prompt treatment of an obstructed urinary catheter to prevent life-threatening complications of autonomic dysreflexia
Number
Name
Colour
Maximum waiting time (minutes)
1
Immediate
Red
0
2
Very urgent
Orange
10
3
Urgent
Yellow
60
4
Standard
Green
120
5
Non-urgent
Blue
240