The nurse is part of the health team, fulfilling an important role in the care of the person and family, helping the individual in meeting their needs in order to adapt to the circumstances of life in a harmonious and healthy.According to a study that will be announced shortly, the nurse is primarily a professional vocation, a professional who prefers the safety and welfare of patients to their own.

One aspect worth noting is the responsibility of the nurse feels towards their patients, feeling that it will not abandon them or leave them without treatment, or fail to visit them at home but there are risks and feelings of helplessness in certain situations.

This dedication and responsibility sometimes leads to not use any protective measure to safeguard the peace of the patient, for example, home visits carried in a container for needles and syringes discarded in the health center to avoid the patient may puncture, or for example, do not wear the mask so as not to scare patients and promote a loss of confidence and a widening gap between the professional and the patient.

The nursing profession is subject to a number of risks specific to the work that is often not conscious society, where the experience and confidence of the nurse has changed the mechanics of its working habits, automatic behavior, meaning a risk of their profession. The accidental punctures and cuts, the risks engendered by home visit, the spread of some diseases, are just some of the risks they face daily profesionales.

Stress and psychological pressure by multiple factors, such as timetable changes, need for more staff, rush, etc.. And even the feeling of helplessness they feel when making home visits or at the health center in certain situations .

The stress generated by the work, the rush, the feeling of vulnerability, as in any other profession, can mean an increased risk of accidents. For the nurse this increased risk translates into a greater likelihood of accidental puncture, cutting, pollution or contamination at the time of making a cure, and so on. This causes stress, too, that sometimes does not end up using the existing security measures.

Conceptual definition of nursing diagnosis.
A theoretical and conceptual framework is a list of concepts interrrelacionados provides a way of thinking about:
- The concept of customer (individual and environment)
- Goal of nursing.
- Nursing Interventions

Methodological definition of nursing diagnosis
The idea of methodological concept tells us how to get to a diagnosis through the nursing hierarchy of needs “phenomenon” and the actions of the nursing care.
The methodological concept of nursing diagnosis is the conclusion of the assessment that allows the design and construction plan of care through the collection of information, interpretation of data …
Campbell defines the nursing diagnosis from a methodological point of view as the identification of subjective responses, and the establishment of the changes that you must enter the nurse for the changes occurring.

In summary, the diagnosis comes from the Greek word dia-gignoskein, which is known through, analyze the nature of a situation. Thus we can define the diagnosis as the identification of the nature of a situation or health problem and the possible cause of it. Clinical trial on a response from the person to life processes and health problems. A necessity is that the individual must meet in order to remain within a state of health or within normality.

One problem is the result of an unmet need to which the person responds in different ways, is what we call symptoms (emotional, physical, verbal or not).

One hypothesis is an assumption, assumption, conjecture, or starting point of an argument that should be supported by a body of theoretical knowledge or approved by science, must be comparable and possible to prove scientifically.

Structure of nursing diagnosis
The essential components of nursing diagnoses are based on the PES format, the following:
1. Health problem, is the title or label, is the concise description of the problem.
2. Etiology, the factors that contribute to this cause the problem.
3. Signs and symptoms are the manifestations that are often in the diagnosis in particular.