how do you calculate nursing hours per patient day?
Long Term Care - How to calculate Nursing hours allotted per day per patient/resident (PPD) 1  PPD. 2  If you are allotted 3 RN's in a 24-hour time limit, then take how many hours a day they work and divide the census into that amount - 3 x 8 = 24, then divide 24 by the census 80 = .3, thus the PPD for RN's for the day is .3.