The Association Between Residual Neuromuscular Block Risk Prediction Score and the Train-of-Four Ratio

Inclusion Criteria: 1. Age group 18-65 years old 2. Both genders 3. Patients with American Society of Anesthesiologist physical status classification of 1 or 2. Exclusion Criteria: 1. Patients who are less than 18 years old or more than 65 years old. 2. Patients with planned scheduled recovery in the intensive care unit or if more than 10 minutes had elapsed since tracheal extubation until NMB monitoring at the PACU. 3. Patients on medications that interfere with muscle activity. 4. Known allergy to neuromuscular blocking agents. 5. Pregnancy or suspected pregnancy. 6. Neuro-muscular diseases. 7. Patients refusing to participate in the study.