Radiology, CT, Non-Invasive (Holters, EKGs, Zio Monitors), help with scheduling, registration Common types of imaging/studies performed & Job Duties All body, ortho, ie Chest Xray, Knee Xrays, Spines, Skulls. Department: Radiology - CT (Computed Tomography) General Certification Requirements (BLS, etc.) BLS Certs/ARRT & other specialty certification requirements ARRT (R)(CT) {*If you have a tech with Ultrasound experience in addition to this, that would be great too.