Proficiency is the demonstration of knowledge, competence and capacity. Proficiency is an adjective to qualify a person who has a full knowledge of a particular subject, who runs everything with a lot fruitfulness, abiliity and competence.
A proficient individual is someone skilled and capable, and demonstrates knowledge in a particular subject. For this demonstration, there are exams and proficiency tests, which can be in languages such as English, French, Japanese and also in higher education courses, such as nursing. In English and Spanish the word proficiency is translated as proficiency (English) and competence (Spanish).
Language exams are essential to prove to institutions, especially universities, that the student has a great knowledge of the language, it is even a prerequisite for taking a master's and doctoral. Proficiency exams usually have an expiration date, and must be renewed as necessary.
The Federal Council of Nursing has a proficiency exam for professionals in the area, for updating and professional improvement, and makes nurses, technicians and nursing assistants more qualified.