MIXED ACUITY UNIT** - MUST BE COMFORTABLE FROM ICU TO some PCU ratios AA Ratios 1:3-4 - very rare ICU Ratios 1:2 CVICU - biggest patient population is CV surgery and Thoracic surgery patients, including CABG, TAVR, SAVR, MVR, and VATS. Years of experience REQ: 18 months First timers accepted: Yes Weekend REQ: Every other Certs REQ ACLS, BCLS Required; NIH is preferred Is on-call REQ No.