Question

Increased asthmatics attacks in certain seasons are related to

• A. eating fruits preserved in tin containers
• B. inhalation of seasonal pollen
• C. low temperature
• D. hot and humid environment.

Answer 1

The Correct Option is B

Increased asthmatic attacks in certain seasons , are related to inhalation of seasonal pollen. Pollens are microscopic grains produced by plants in order to reproduce. Pollen allergy is a hypersensitive reaction to pollen. Pollen induced reactions include extrinsic asthma, rhinitis and bronchitis. Asthma can be defined clinically as a condition of intermittent, reversible airway constriction, due to a hyper- reactivity to certain substances producing inflammation. ; In an asthma attack the smooth muscles of the lungs go into spasm with the surrounding tissue inflammed and secreting mucus into the airways. Thus, the diameter of the airways is reduced causing the characteristic wheezing as the person affected breathes harder to get air into the lungs. Attacks can vary in intensity and frequency. An asthmatic attack may be triggered by environmental allergens, such as pollen, animal dander, mold spores, house dust, feather pillows, some foods, or any other sensitive substance. Asthmatic attacks may also result from infections, emotional stress, fatigue, endocrine changes and temperature and humidity changes. Cigarette : smoking is a major factor in asthma.