Premature rupture of membranes (PROM) is one of the most common problems that caused maternal and neonatal morbidity and mortality.The aim of this study was to estimate the incidence of premature rupture of membranes, find out the risk factors associated with PROM and assess the impact of PROM on maternal and neonatal conditions.A questionnaire and assessment sheets were developed by the researcher and used on 300 parturient women, (150) having PROM, (150) having intact membranes, selected purposively from Labor Unit at Zagazig University Hospital.A pilot study was carried out on 40 parturient women to evaluate the content of the questionnaire and assessment sheets as well as to estimate the time needed for data collection.The study results can be summarized as follows:Demographic and obstetric characteristics demonstrated that, parturient women who had PROM were more likely to be younger (8.7%) and older age (16.7%) than control group (6.7% and 10.7% respectively).Women who have PROM were housewives (83.3%) compared toThe study was conducted in a sixteen general medical and surgical units at Mansoura University Hospital (1750 beds) from July (2003) to January (2004).The total sample of this study consists of three groups of subjects .The first group included all first-Four tools used for data collection .The first tool was Managerial functions sheet developed by revision of literature and modified by 7 expertise from 5 different universities, to identify the perception of first-line managers about consuming their time The second tool was observational checklist using the same items in the previous tool to estimate the actual time spent by first-line managers in management functions.The third tool was Nursing Activity observation study sheet to estimate the amount of time that nurses devoted to various activities this tool originally developed by Department of Health Education and Welfare .The fourth tool was patient Classification Assessment sheet developed by Nassar to classify patients into four care groups.Data were collected by the researcher and 16 trained observers who were nurse intense from the Faculty of Nursing.Data were collected by regular observation every 15 minutes of all nursing personnel assigned to work in the selected units for six consecutive days.This sheets contained the various nursing activities needed by the patient and a standardized time value of each activity. This sheet was used to determine the direct nursing care required by patients.To assess patients a numerical score was given that quantified direct nursing care needed by patients. An experimental study was conducted prior to actual data collection to develop criteria for classifying patients .The criteria considered by the researcPatient mobility dependency, consciousness degree, treatment and procedure, monitoring, feeding, bathing and personnel hygiene dependency. Patients were classified into four groups namely; Self care group, partial care group, intermediate care group, and To determine the productivity of unit personnel, divide the total required time (direct + indirect) by patients on the total actual time spent in giving the care (direct +indirect), the standard to measure productivity was from 85% to 115 %.Furthermore, to identify the effect of managerial functions on productivity ,correlation done by statistical analysis.