The respiratory therapist is a joint medical expert. The respiratory therapist evaluates, treats and helps patients with respiratory or cardiopulmonary diseases. They supply oxygen to the patient and connect a person who can not breathe by itself to the ventilator. In addition, the respiratory therapist examines the patient's respiratory disease, examines the vital capacity of the patient, removes mucus from the patient's lung, and provides an emergency resuscitation method when respiration ceases. The respiratory therapist must have excellent technical skills and be able to work under pressure.
The respiratory therapist educates, diagnoses, and treats people with heart disease and lung disease. Respiratory therapists specialize in heart and lung care and often work with lung disease and anesthesia specialists in every aspect of patient clinical care. Respiratory therapists play an important role in both medicine and care. The important role of ICU is to start and maintain ventilator and ventilator treatment. At clinics and outpatients, respiratory therapists help diagnosis and provide education to patients with heart disease and respiratory illness. In the United States, a respiratory therapist who is certified by Registered Respiratory Therapist evaluates and treats patients with substantial autonomy right under the guidance of a pulmonary specialist
Respiratory therapists are sometimes called respiratory scientists who are experts in lung function. Respiratory therapists are working with pulmonary specialists in respiratory clinical and general research from respiratory epithelial anatomy to most effective treatment of childhood pulmonary hypertension. Scientific research is being conducted to find possible causes of asthma and lung cancer and other possible treatments. Respiratory profession was officially founded in the United States. Since the beginning of the 20th century respiratory research has been officially done. In the early days, respiratory therapists were called "oxygen technicians" and most of their activities were to move compressed gas cylinders and give oxygen through nasal cannulas or oxygen tents.