Respiratory therapy is the study of airway management in order to treat patients who suffer from such diseases as asthma, emphysema, and bronchitis, just to name a few. A respiratory therapist helps to administer certain treatments to patients to help them breathe easier and clearer. In many cases the therapist is an integral part of a surgical operation. This process is absolutely critical when performing any kind of surgery, particularly when the patient is under anesthesia. A full knowledge of how the lungs function and the various medicines used to ensure breathing is enabled will be taught to students focusing on respiratory therapy. Various treatments for asthma and other respiratory diseases will be discussed. The importance of good lung function is necessary for life. Those who are involved in the career of respiratory therapy play a very important part in ensuring that patients receive the air flow needed to be able to breathe comfortably.