Certified nursing assistant (CNA) is a member of the team, which provides care for patients under the supervision of nurses. Nurse assistant performs routine care and treatment of patients, to help them in their daily tasks. Their functions include monitoring the patient\’s health throughout the world, he asked them, serving them meals, taking into account their temperature, blood pressure, breathing rate, pulse, etc, and make comments about the patients and reports on the state of the supervision of nurses.