Sectional study of multiple cases involving 30 patients after heart catheterization aiming to establish the nursing diagnoges according to the North American Nursing Diagnoses Association (NANDA). The method of data collection was the Nursing Process based on the Self-care Deficit Theory. Twenty-five different nursing diagnoses had been established. All patients presented Impaired tissue integrity, Risk of infection, Pain incisive in the area inguinal, Injured physical mobility, Self-care deficit related to personal hygiene, and Risk of organic renal lesion. It has been concluded that the Self-care Deficit theory allowed the classification of all nursing diagnoses according to NANDA. It contributed to the nursing assistance individualization, humanization, and qualification. Beyond advance self-knowledge, self-control and patient participation on his/her self-car.