Scrub role: function as scrub technologist using sterile technique; prepare/organize sterile instruments, guidewires, catheters, sheaths, embolic materials, and procedural trays; familiarity with vascular anatomy, device sizing, catheter selection, and table-side flow. Monitor role: function as primary monitor technologist recording hemodynamic data, pressures, and procedural events; operate/troubleshoot physiological monitoring systems (hemodynamic recorders, ECG, oxygen saturation); document supplies, implants, contrast usage, and procedural details.