PreOp PACU Registered Nurse (PACU RN) at Surgical Specialty Center of Mid-Atlantic The PreOp PACU Registered Nurse provides continuity and quality nursing care for all patients, with continual evaluation of the patient's condition, providing patient safety, comfort, and privacy at all times. The surgeries and services provided by Surgical Specialty Center of Mid Atlantic in Bethesda, MD, may include orthopedic surgery, other surgery, laboratory services, pharmaceutical services, and radiology services.