Allergy Testing Regina - Asthma literally translates to and means "panting" in the Greek language. It refers to a chronic inflammatory disease of the airways and lungs. The characteristic asthma signs are variable and recurring, consisting of bronchospasm and reversible airflow obstruction. Signs of asthma comprise: chest tightness, wheezing, coughing and shortness of breath. Asthma is clinically classified depending on the frequency of signs, peak expiratory flow rate and forced expiratory volume in one second. Asthma can be further categorized as atopic or extrinsic or intrinsic or non-atopic.
Asthma is believed to be caused by a combination of environmental and genetic elements. Treatment of acute indications is usually by making use of an inhaled short-acting beta-2 agonist, like for example salbutamol. Those who suffer from asthma try to avoid triggers comprising allergens and irritants. Those who have asthma often find relief by inhaling corticosteroids. Treatments making use of Leukotriene antagonists are less helpful than corticosteroids are normally less favored.
The diagnosis is normally made based on the pattern of symptoms as well as the response to therapy over time. There has been a significant increase in asthma ever since the 1970s. According to statistics of 2010, throughout the world, over 300 million people are affected worldwide and 250,000 asthma fatalities were recorded in the year 2009. The prognosis for asthma is normally good because of the ability to correctly control this condition with therapy.
The classification of asthma is based upon its seriousness in individuals, the frequency of symptoms, if the indications occur at night, predicted percent of FEV1 and FEV1 variability, how often and intermittent the attacks occur. The asthma may be considered mild persistent if the attacks take place less than twice a week and not every day. For instance, if they take place 3 to 4 times a month. One more category will be moderate persistent. These attacks can occur once a week but not nightly. Daily attacks are considered to be severe persistent happening usually 7 times per week, perhaps several times a day.
Currently, there is no concise way for categorizing different subgroups of asthma, even though the condition is classified based on severity as listed above. Cases of asthma respond to various treatments. There is still much research ongoing to find ways to categorize subgroups and which treatments respond well.
Asthma is not considered part of chronic obstructive pulmonary disease, even if it is a chronic obstructive condition. Chronic bronchitis, bronchiectasis and emphysema are examples of chronic obstructive pulmonary disease because this is irreversible. In asthma, the airway obstruction is reversible, however, if left untreated, the chronic lung inflammation during asthma can become an irreversible obstruction due to airway remodeling. Asthma even affects the bronchi and not the alveoli as in emphysema.
Asthma attacks are usually defined as an acute asthma exacerbation. Signs of an asthma attack includes: shortness of breath, wheezing and chest tightening, though several people present mainly along with coughing. In several cases, are motion can be impaired so greatly that no wheezing is heard. During an attack, there can be a paradoxical pulse, that refers to a pulse which is weaker during inhalation and stronger during exhalation. The person might have a blue tinge to their skin and nails caused by the lack of oxygen. Certain neck muscles such as the scalene and sternocleidomastoid muscles may become more pronounced as the person struggles for air.
The peak flow rate or likewise referred to as PEFR is =200 L/min or =50% of the best possible flow rate in a mild exacerbation. Moderate is defined as between 80 and 200 L/min or twenty five percent and fifty percent of the predicted best while severe is defined as = 80 L/min or =25% of the predicted best.
Asthma can also be exercise induced and this diagnosis is common amongst top athletes. For example, a study in the Summer Olympic Games held last 1996 in Atlanta showed that 15 percent of athletes had asthma and 10% were on asthma medication. The most common sports which have a high incidence of asthma consist of long-distance running, mountain biking and cycling. Diving and weight-lifting show a relatively lower incidence. There has been evidence suggesting inadequate vitamin D levels are linked with severe asthma attacks. Usually, exercise induced asthma is treated successfully with the use of a short-acting beta2 agonist.
Lots of people suffer from asthma as because of things they are exposed to at their workplace. This is reported as occupational respiratory disease. Most of cases of occupational asthma are not reported or recognized as such. The highest percentage of cases happened during fabricators and labourers, followed by professional and managerial specialists as well as people in administrative support, technical and sales jobs. The majority of these cases of asthma were in the services and manufacturing industries. Some reactive chemicals are usually associated with work-related asthma as well as things including animal proteins, enzymes, flour and natural rubber latex. One research reported that 15 to 23 percent of new onset asthma cases that happened in adults are work related.
Asthma is caused by genetic and environmental elements. These issues influence how severe the asthma is as well as how it responds to medication. There have been researches showing connected diseases such as hay fever and eczema are related. The strongest risk factor for developing asthma is a history of atopic disease. The more allergens a person reacts to on a skin test, the higher the chances of them having asthma.
Much allergic asthma is connected with sensitivity to indoor allergens. In the West, our normal housing styles also allow greater exposure to indoor allergens. There have been mixed findings to the prevention studies aimed at the aggressive reduction of airborne allergens in a house with babies. For instance, strict dust mite restriction has reduced the risk of allergic sensitization to dust mites and somewhat lessens the risk of developing asthma until the age of 8. Although, similar studies with exposure to cat and dog allergies have shown that exposure during the first year of life was found to lessen the chance of allergic sensitization and of developing asthma later in life.
Some studies in the UK and the USA have explored the risks between obesity and the development of asthma. A lot of elements that are connected with obesity may play a role in asthma pathology. Like for instance, due to a build-up of adipose or fatty tissue, a decreased respiratory function can occur. This could be partly because adipose tissue contributes to a pro-inflammatory condition and this has been linked with non-eosinophilic asthma. Adult onset asthma has also been linked with Churg-Strauss syndrome and periocular xanthogranulomas.
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