The medicine inside the inhaler opens the tubes that go to the lungs. Most asthma sufferers carry special medicines around with them. Īsthma can be controlled most often by avoiding contact with triggers and by using certain drugs. When the inhaler is placed in the mouth and pressed the medicine is sprayed into the throat and then enters the lungs. Work-aggravated asthma: this is when a person already has asthma and environmental triggers at their place of work makes it worse.Ī woman using an inhaler which has medicine to treat an asthma attack inside. Reactive Airways Dysfunction Syndrome (RADS):Ĥ. Irritant-Induced Asthma (IIA) is occupational asthma without latency: this is an asthma type is when the signs and symptoms of asthma can occur immediately ( without latency) after being exposed to the environmental irritants. The period of time from when he started the job in January to when the signs and symptoms of asthma started in March is the latency period. At the end of March he starts developing the signs and symptoms of asthma.
e.g.: John starts working at a factory where chemicals are used the first week of January. Occupational asthma with latency: this asthma type is when the signs and symptoms of asthma occur after a period of time ( latency) after being exposed to the environmental irritants. There are different types of work-related asthma (WRA): ġ. The kind of jobs that may cause work related asthma are usually those in which there is a lot of smoke or chemicals are used. Work related asthma are types of asthma that are caused or made worse by irritants in the environment at a person's place of work. These are irritants and they can cause or trigger work-related asthma. The furnace gives off smoke, fumes and small particles. These workers are checking the furnace at a steel factory. About 30% of people who have cough-variant asthma will develop typical asthma. Cough-variant asthma usually does not cause wheezing or breathlessness and causes a dry, scratchy, mostly nonproductive cough (this means little or no phlegm is coughed up). Cough-variant asthma Ĭough-variant asthma is a type of asthma in which a cough is the main, and sometimes only sign. If they have two parents who are atopic they have a 75% chance of being atopic. If a person has one parent who is atopic they have a 50% chance of being atopic too.
This hypersensitivity causes their body to react in certain ways, usually a person who is atopic develops allergic rhinitis but they may also get atopic dermatitis, food allergy and asthma. Atopy is when there are changes in some of the genes a person is born with ( genetic predisposition) that makes them much more sensitive ( hypersensitive) to environmental antigens - such as chemicals, smoke, dust etc. Atopic asthma Ītopic asthma is the most common form of asthma. It is a posterior view which means looking from behind. This is a cross-section of the primary bronchi (one is bronchus, two are bronchi) which shows the inside of the airways.
#NOCTURNAL ASTHMA EMEDICINE FULL#
They also have shortness of breath, which means they cannot take a full deep breath chest tightness which feels like their chest is being squeezed and they may also cough a lot.Īsthma attacks can be a medical emergenciy because they can be fatal (cause a person to die). Asthma also causes the goblet cells inside the airways to make more mucous than normal, this clogs the airways which are already too narrow during an asthma attack, making it even more difficult to breath.Ī person having an asthma attack often makes wheezing sounds when trying to breath, this is the sound of air trying to pass through the too narrow airway. It causes the tissue inside the airways to swell, and the bands of muscle around the airways to constrict making them too narrow for enough air to pass through and breath normally. An asthma attack causes the airways to constrict, and too much mucous to be made which makes breathing difficult.Īsthma (or Asthma bronchiale) is a disease that causes affects the airways - called bronchi and bronchioles - that are inside the lungs.
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