Allergy Testing Winnipeg

Allergy Testing Winnipeg - The word asthma comes from the Greek language and translates to "panting." It is a chronic inflammatory sickness of the airways. Asthma is characterized by variable and recurring symptoms, comprising bronchospasm and reversible airflow obstruction. Symptoms of asthma comprise: chest tightness, wheezing, shortness of breath and coughing. Asthma is clinically classified depending upon the frequency of signs, peak expiratory flow rate and forced expiratory volume in one second. Asthma may be further categorized as atopic or extrinsic or intrinsic or non-atopic.

The condition of asthma is triggered by several genetic and environmental factors or combination there of. Acute symptoms are usually treated by making use of an inhaled short-acting beta-2 agonist like salbutamol. People who have asthma try to avoid triggers including irritants and allergens. People who suffer from asthma often find relief by inhaling corticosteroids. Treatments making use of Leukotriene antagonists are less useful as opposed to corticosteroids are normally less preferred.

Normally, a diagnosis is made based upon the pattern of signs in addition to the response to therapy over time. Ever since the 1970s, there has been a significant increase in asthma. According to the 2010 statistics, all around the world, more than 300 million people are affected worldwide and 250,000 asthma fatalities were recorded during 2009. The prognosis for asthma is generally good due to the ability to correctly handle this particular condition with therapy.


Asthma is classified according to its severity in patients, the frequency of symptoms, if the symptoms take place during nighttime, FEV1 variability and predicted percent of FEV1, how often and intermittent the attacks happen and so forth. The asthma may be considered mild persistent if the attacks occur less than twice per week and not daily. For instance, if they take place 3 to 4 times a month. One more category would be moderate persistent. These attacks can occur once per week but not every night. Daily attacks are considered to be severe persistent taking place normally 7 times per week, perhaps several times a day.

Currently, there is no concise method for classifying different subgroups of asthma, even if the condition is classified based on severity as listed above. Cases of asthma respond to different treatments. There is still much research ongoing to find ways to classify subgroups and which treatments respond well.

Asthma is not considered part of chronic obstructive pulmonary disease, even though it is a chronic obstructive condition. Chronic bronchitis, bronchiectasis and emphysema are examples of chronic obstructive pulmonary disease as this is irreversible. In asthma, the airway obstruction is reversible, however, if not treated, the chronic lung inflammation during asthma could become an irreversible obstruction due to airway remodeling. Asthma also affects the bronchi and not the alveoli as in emphysema.

Asthma Attack

Asthma attacks are usually defined as an acute asthma exacerbation. Signs of an asthma attack comprises: chest tightening, shortness of breath and wheezing, although some people present mainly along with coughing. In various cases, are motion can be impaired so greatly that no wheezing is heard. During an attack, there may be a paradoxical pulse, which refers to a pulse that is weaker during inhalation and stronger during exhalation. The individual may have a blue tinge to their nails and skin resulting from lack of oxygen. Some neck muscles such as the sternocleidomastoid and scalene muscles may become more pronounced as the individual struggles for air.

The peak flow rate or 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 25% and 50% of the predicted best whilst severe is defined as = 80 L/min or =25% of the predicted best.

Exercise Induced

Asthma may likewise be induced by exercise and this diagnosis is common among top athletes. For example, a study during the 1996 Summer Olympic Games within Atlanta showed that 15% of athletes had asthma and 10 percent were on asthma medication. The most common sports that have a high incidence of asthma include long-distance running, mountain biking and cycling. Weight-lifting and diving show a fairly lower occurrence. There has been proof suggesting inadequate vitamin D levels are linked with severe asthma attacks. Most commonly, asthma induced by exercise is treated successfully with the use of a short-acting beta2 agonist.

Occupational Asthma

Many individuals have asthma as a result of things they are exposed to at their workplace. This is reported as occupational respiratory disease. Most of cases of occupational asthma are not recognized or reported as such. The highest percentage of cases occurred during fabricators and labourers, followed by managerial specialists and professionals as well as those in technical, sales and administrative support jobs. Nearly all of these cases of asthma were in the manufacturing and services businesses. Some reactive chemicals are normally linked with work-related asthma as well as items like for example enzymes, animal proteins, flour and natural rubber latex. One research reported that 15 to 23 percent of new onset asthma cases that happened in adults are connected to work.


There are a lot of environmental and genetic factors that trigger asthma. Many of these issues will influence how severe it responds to medication. There have been researches showing associated illnesses like for instance eczema and hay fever are connected. The strongest risk factor for developing asthma is a history of atopic disease. The more allergens an individual reacts to on a skin test, the higher the possibilities of them having asthma.

Much allergic asthma is related with sensitivity to indoor allergens. In the West, our typical 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 home with infants. For example, strict dust mite restriction has lessened the chance of allergic sensitization to dust mites and moderately reduces the risk of developing asthma until the age of 8. Although, similar researches with exposure to cat and dog allergies have shown that exposure during the first year of existence was found to lessen the chance of allergic sensitization and of developing asthma later in life.

Some studies within the USA and the UK have explored the risks between the development of asthma and obesity. Lots of factors that are related with obesity may play a part in asthma pathology. Like for example, because of a build-up of fatty or adipose tissue, a decreased respiratory function can happen. This could be partly because adipose tissue contributes to a pro-inflammatory condition and this has been related with non-eosinophilic asthma. Adult onset asthma has likewise been connected with Churg-Strauss syndrome and periocular xanthogranulomas.

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