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Table 1 Modified Aldrete score (Aldrete, 1995)

From: Dexmedetomidine versus magnesium sulfate as adjunct to general anesthesia in patients undergoing video-assisted thoracoscopy

Criteria Point value
Oxygenation  
 SpO2 > 92% on room air 2
 SpO2 > 92% on oxygen 1
 SpO2 < 90% on room air 0
Respiration  
 Breathes deeply and coughs freely 2
 Dyspneic, shallow breathing 1
 Apnea 0
Circulation  
 Blood pressure ± 20 mmHg of the baseline value 2
 Blood pressure ± 20–50 mmHg of the baseline value 1
 Blood pressure ± 50 mmHg of the baseline value 0
Consciousness  
 Fully awake 2
 Arousable on calling 1
 Not responsive 0
Activity  
 Moving all extremities 2
 Moving two extremities 1
 No movement 0