Hello, I usually work in the MICU -1 of 12 beds or MICU -2 of 6 beds and are staffed based upon acuity of patients also. Our ratio is 2:1 or 1:1(CRRT, High Acuity), MICU -1 is staffed for 6 RNs and plus one Charge nurse (no assignment) if additional RN is needed. the Charge RN is pulled into staffing if a 7 RN is needed. MICU-2 is staffed the same but the Charge RN takes an assignment. If our census is low, we are pulled to other ICUs (such as Neuro, Surgical, or Burns) or shift is cancelled for the day. We usually do not have problems with low census because it rarely happens. But when are understaffed here are the following options: 1.) Offer RN staff bonus pay or ask to come in to work, 2.)Pulled SWAT Rn into staffing. 3.) We also have a Corporate RN Pool that we utilize 4.) Using an Nursing Agency. Well I hope this answers your question. Have a good day