Abstract
BACKGROUND: Most standardized nursing care plans for healthy neonates include multiple nursing diagnoses to reflect nurses' judgments on the infant's status; however scientific literature concerning this issue is scarce. Newborn physiological immaturity is a concept in the ATIC terminology (architecture, terminology, interface, information, nursing [infermeria], and knowledge [coneixement]) to represent the natural status of vulnerability of the healthy neonate. PURPOSE: To identify the essential attributes of the concept and provide its conceptual and operational definition, using the Wilsonian approach. FINDINGS: The concept under analysis embeds a natural cluster of vulnerabilities and environmental interactions that enhance the evolving maturation process. IMPLICATIONS FOR PRACTICE: The use of this diagnosis may simplify the process of charting the nursing care plans and reduce time needed for documentation while maintaining the integrity of the information. IMPLICATIONS FOR RESEARCH: Consistent development and use of nursing concepts is essential for knowledge building. Studies on the actual use of nursing diagnoses are needed to inform decision making.