Magnesium and Cramping

This is a prospective, randomized trial enrolling participants undergoing an elective hysteroscopy or Dilation and Curettage (D\&C) at Corewell Health William Beaumont University Hospital in Royal Oak. Participants will be initially contact via phone call 1 week prior to the procedure. If interested in participating, the study will be discussed pre-operatively and consent will be obtained. Baseline data including demographics, gynecological medical and surgical history, social history, allergies, current medications, ASA status, diagnosis, treatment and paucity will be collected. The participant will be randomized to one of three study arms: IV magnesium, IV push ketamine, or placebo. The participants and evaluators will be blinded to the assigned study arm. The Principal Investigator and Anesthesiologist will not be blinded. All participants will receive standard of care anesthesia care and standard of care for the procedure. Post-procedure, participants will receive standard of care pain management. Opioid consumption documented in the EMR will be recorded, and pain post-procedure pain will be assessed. Overall pain and cramping pain will be assessed using the Visual Analog Scale (VAS) at 1 hour, 2 hours, and 24 hours post procedure. The 24 hour pain assessment will be completed via phone. Adverse events will be monitored for 24 hours post operatively.