MPCU day shift time 3:30.m. - 4:00 p.m. About the unit 3 North is a 27-bed Medical Progressive Care Unit, offering 3:1 or 4:1 nurse to patient ratio, based on patient acuity. This unit is designed to care for the neuro, medical, and surgical patient requiring a higher level of care. This specific patient population may also require frequent assessments and monitoring related to health state.