Hey all. When do you calculate your intake to determine your UF rate? We've always figured the intake at the end of the hour to figure what to set our UF rate at the top of the next hour. Basically, we take off this hour what we put in last hour. The other night i worked and the nurse was "estimating" what she thought would go in on the current hour (top of the hour), and setting the uf rate so she would be taking off that amount at same hour. She stated that the dialysis nurses are teling all of the floor ICU nurses to run it this way, and so that is what everyone is doing. My problem with this is, How do you really know what will go in in the hour until it is over. Especially if your dumping blood products in or doing PRN boluses or albumin and titrateing mega pressors? Plus it is very confusing in the charting. I&O has always been done as: intake charted at 8pm was what went in from 7pm to 8pm, and output is what you empied at 8pm (be it urine, ng or hemofiltration). how are you all doing it? I really would appreciate some input on input on this.