Helping a Patient With a Pre-Existing Mental Health Condition Cope With Depression and COVID-19 Using the Neuman Systems Model: A Single Intrinsic Case Study.

Nursing theories and conceptual models shape nursing knowledge. This study applied the philosophical and theoretical basis of the Neuman Systems Model, which focuses on the use of primary, secondary, and tertiary nursing prevention for retention, attainment, and maintenance of patient system wellness, to a patient with pre-existing mental health conditions struggling to cope with depression and COVID-19 in a dedicated COVID-19 hospital in an urban area of Iran. The single intrinsic case study design used interviews, nursing observations, and document analysis to evaluate environmental factors and intra-, inter-, and extra-personal stressors. An advanced, outcome-oriented nursing care plan was developed.