The purpose of this research is to use 2 devices to compare the difference in the amount of time it takes for each device to register complete muscle relaxation after the muscle relaxing medication is given. The comparison will be made by using electromyographic (EMG), such as TetraGraph, and acceloromyographic (AMG), such as TOFScan, monitors at the time of insertion of breathing tube.

Inclusion Criteria:

• Patients willing to participate and provide an informed consent.
• Patients undergoing elective surgical procedures that require use of NMBA agents (rocuronium) administered intraoperatively.

Exclusion Criteria:

• Patients with disorders, such as stroke, carpal tunnel syndrome, broken wrist with nerve damage, Dupuytren contracture, or any similar wrist injury.
• Patients with systemic neuromuscular diseases such as myasthenia gravis.
• Patients with significant organ dysfunction that can significantly affect pharmacokinetics of neuromuscular blocking and reversal agents; i.e., severe renal impairment or end-stage liver disease.
• Patients having surgery that would involve prepping the arm into the sterile field.
• Patients receiving a rapid sequence induction.

Qualified participants will be invited to participate in this study regardless of gender, sex, race, or religion.