Dr. Iqbal Abdus Samad MD FRCP FCCP

Cystic fibrosis damages the lungs, digestive system, and other organs in the body. It affects the cells producing mucus, sweat, and digestive juices. It is caused due to defect in a gene. This gene changes a protein responsible for movement of salts in and out of cells. As a result, thick, sticky...

A lung biopsy is a medical procedure which involves removal of a small piece of lung tissue to examine it closely under a powerful microscope. Lung biopsy can be done in 4 different ways. However, the method used depends solely on the overall body health and the place of the lung where the sample is...

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Acute bronchitis may not cause any complications if it occurs the first time in a person. It usually goes away by taking proper rest after about two to three weeks. However, if bronchitis is left untreated, it can affect the respiratory system and damage the airways and lungs. Because of this...

What is RSV?RSV or respiratory syncytial virus is a common virus that usually affects the respiratory tract. It can cause colds in adults and older children, but may cause serious lung infections, such as pneumonia or bronchiolitis in babies and immunocompromised individuals. CausesRSV is only...

What is a persistent cough?It can be annoying to have a cough that lasts for more than a couple of weeks. A cough is considered chronic or persistent if it does not go away after four weeks in children and eight weeks in adults. However, most persistent coughs are due to colds, flu, infection, or...