This dwriptive study examined thefrequency of types of diagnoses formulated by RNs. Ten patient charts were randomly selectedfronz each of 10 frc~7iiently occiirring diagnosis-related groups (DRGs) (N = 100). Findings indicated the majority of diagnoses (N = 1,504) were made in the Euclianging (55.33%) Human Response Pattern bit two groups of nurse raters-RN caregiwrs and CNSs. Diflerences in number of diagnoscs made by the nurse groicps were statistic-(illy significant for all Human Response Pattern . . . Overall, the CNSs made more diagnows than the caregivers (944 vs. 560), and their dir~cynoses were of a broader nature.

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Management and organizational theories are commonly used to design nursing administration studies. This article proposes a nursing theory as a viable alternative and demonstrates its utility in the conduct of nursing administration research. The purpose of the research was to determine the explanatory power of the environmental stimuli of medical condition, nursing condition, nursing intensity, and medical severity on length-of-stay (LOS). Twenty-three percent of the variance in LOS was accounted for by the environmental stimuli with nursing acuity contributing 14%. The focal stimulus, medical condition (diagnosis-related groups), uniquely explained only one percent of the variance. The theory of social organizations as adaptive systems, derived from the Roy adaptation model, provides an attractive nursing framework to guide and design studies that will contribute to nursing administration science and address practical problems confronting nurse administrators.

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