Respiratory stability  
Able to take deep breath and cough 2
Dyspnea/shallow breathing 1
Apnea 0
Oxygen Saturation  
Maintains > 92 % on room air 2
Needs O2 inhalation to  maintain  O2 saturation > 90% 1
O2 saturation < 90 % even with supplemental O2 0
Consciousness  
Fully awake 2
Arousable on calling 1
Not responding 0
Circulation  
BP ± 20 mmHg  preop 2
BP ± 20-50 mmHg  perop 1
BP ± 50 mmHg perop 0
Activity  
Able to move 4 extremities  2
Able to move 2 extremities 1
Able to move 0 extremities 0
Total Score 10
Table 2: Aldrete Criteria (AC).