asthma
(noun)
A long-term respiratory condition, marked by airway obstruction from bronchospams. It is often in response to an allergen, cold air, exercise, or emotional stress.
(noun)
A long-term respiratory condition, in which the airways may unexpectedly and suddenly narrow, often in response to an allergen, cold air, exercise, or emotional stress. Symptoms include wheezing, shortness of breath, chest tightness, and coughing.
Examples of asthma in the following topics:
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- The prevalence of asthma has been rising steadily since the early 1980s.
- In contrast to emphysema, asthma affects the bronchi, not the alveoli.
- An acute asthma exacerbation is commonly referred to as an asthma attack .
- Asthma is caused by environmental and genetic factors.
- Spirometry is needed to establish a diagnosis of asthma.
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- Anecdotal evidence suggests that the Buteyko method can reduce asthma symptoms and improve quality of life.
- In a scientific study to determine the effectiveness of this method, researchers recruited 600 asthma patients aged 18-69 who relied on medication for asthma treatment.
- Patients were scored on quality of life, activity, asthma symptoms, and medication reduction on a scale from 0 to 10.
- On average, the participants in the Buteyko group experienced a significant reduction in asthma symptoms and an improvement in quality of life.
- 1.3-b: (b-i) 600 adult patients aged 18-69 years diagnosed and currently treated for asthma.
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- Exercise induced asthma is another common complication from too much exercise.
- Normally asthma is caused by an allergic response within the lungs, but exercise can induce a similar response from too much intake of dry and cold air during the increased respiratory rate from exercise.
- The air in the lungs is meant to be moistened and humidified before entering the lungs, but if it is not adequately treated in the upper airways, it can induce bronchospams in the brionchioles, which cause the wheezing and coughing that occurs during an asthma attacks.
- Asthma treatments (such as medicines from an inhaler) can help prevent exercise-induced asthma, though it is only a particular risk in those who already have allergic asthma, or who simply exercise at too much intensity for what their body is capable of handling.
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- An FEV1/FVC ration of <70% indicates an obstructive lung disease like asthma or COPD.
- Those with asthma, an acute form obstructive lung disease, will show a low FEV1/FVC ratio during an asthma attack, which returns to normal after the attack is over.
- Therefore to diagnose asthma, many clinicians expose patients to methacholine or histamine to trigger mild asthma attacks to measure FEV1/FVC ratios.
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- Formaldehyde can irritate the lungs, eyes, and nose, and exposure causes headaches and nausea; effects are particularly harmful on individuals with asthma, and childhood exposure has been linked to the development of asthma.
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- They can lower gastric secretions, stimulate uterine contractions, lower blood pressure, influence blood clotting and induce asthma-like allergic responses.
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- (b) Population: all 18-69 year olds diagnosed and currently treated for asthma.
- Sample: 600 adult patients aged 18-69 years diagnosed and currently treated for asthma.
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- Obstructive diseases and conditions include emphysema, asthma, and pulmonary edema.
- Asthma is a disease in which inflammation is triggered by environmental factors, obstructing the airways.
- Those with asthma or edema experience increased occlusion from increased inflammation of the airways.
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- For example, consider a child who has asthma.
- An acute asthma attack produces sensations, such as shortness of breath, coughing, and chest tightness, that typically elicit fear and anxiety.
- Later, when the child experiences subtle symptoms that resemble the frightening symptoms of earlier asthma attacks (such as shortness of breath after climbing stairs), he may become anxious, fearful, and then experience a panic attack.
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- Associated disorders: Atopy, anaphylaxis, asthma.