Surest indicator of reversal of anaesthesia is
After reversal * good muscle tone - as assessed clinically .being able to cough, raise his or her head from the pillow for at least 5 s, protrude the tongue and have good grip strength
Head lift for 5 seconds
Hand grip for 5 seconds
TOF > 0.9
Tongue depression
Preoperative assessment and monitoring in anaesthesia