Dr. Richard S Irwin MD

Croup is described as an infection of the upper respiratory tract, involving the trachea and larynx, which causes obstruction in breathing. The trachea and larynx connect the upper portion of the lungs to the mouth. Croup is characterized by a barking cough.Croup is very common in children. Those...

Emphysema is a form of chronic lung disease and one of the main types of chronic obstructive pulmonary disease (COPD). This disease is regarded as "obstructive" because people who are suffering from emphysema exhale air as if there is an obstruction. There are various factors that can cause...

The Nature of Cancerous CellsEvery cell in the human body is programmed to carry out a specific role. For example, a red blood cell carries oxygen to tissues, a white blood cell wards off infection, and an intestinal cell absorbs nutrients in the digestive tract. All these cells are programmed to...

The pass went way off course, and the hockey puck went flying down the street. James Cameron and another boy went sprinting after it, determined to reach it first. Hockey sticks in hand, they raced to chase down the puck. Breathing heavily, they reached it at the same time and began to struggle for...

Asthma refers to the chronic inflammatory disease of the respiratory system. The causes for asthma differ depending on the individual. During an asthma attack, the airways become narrow, inflamed, and begin to fill with mucus. This makes breathing a difficult task, and leads to coughing and...

Orkambi is an oral drug developed by Vertex Pharmaceuticals and approved by the United States Food and Drug Administration (FDA) for the treatment of cystic fibrosis (CF) in certain patient groups. It is the second drug to be approved for use in patients with CF, after Kalydeco. ...