Abstract
At the general ward, the nursing schedule of the patients is on the established schedule, however at the obstetric wards, there happens many incidental affairs such as deliveries and admittings. I investigated the real condition of the obstetric wards at three general hospitals. The result of the research was that the obstetric case numbers in the each nursing hours of three shifts system, which cmsists of daytime, semi-midnight, and midnight, are almost same numbers. Therefore, at the planing of an obstetric wards, since the midnight activities effect other wards, it must be planed separately from the other blocks. It was also found that the minimum average stay time on the delivery bed is three and a half hours for each delivery and that there must be minimum two delivery tables for 20 beds' ward and three tables in a 30 beds obstetric ward, and four tables in a 60 beds' one.
