Hypersensitivity pneumonitis (patient information): Difference between revisions
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{{ | {{Hypersensitivity pneumonitis (patient information)}} | ||
'''For the WikiDoc page for this topic, click [[ | '''For the WikiDoc page for this topic, click [[Hypersensitivity pneumonitis|here]]''' | ||
{{CMG}}; '''Associate Editor | {{CMG}}; '''Associate Editor-In-Chief:''' [[User: Mohammed Sbeih|Mohammed A. Sbeih, M.D.]] [mailto:msbeih@wikidoc.org] | ||
==Overview== | ==Overview== | ||
Hypersensitivity pneumonitis is inflammation of the lungs due to breathing in a foreign substance, usually certain types of dust, fungus, or molds. | Hypersensitivity pneumonitis is inflammation of the lungs due to breathing in a foreign substance, usually certain types of dust, fungus, or molds. | ||
==What are the symptoms of | ==What are the symptoms of Hypersensitivity pneumonitis?== | ||
Symptoms of acute hypersensitivity pneumonitis may occur 4 - 6 hours after you have left the area where the foreign substance is found, making it difficult to find a connection between your activity and the disease. | Symptoms of acute hypersensitivity pneumonitis may occur 4 - 6 hours after you have left the area where the foreign substance is found, making it difficult to find a connection between your activity and the disease. | ||
Symptoms may include: | Symptoms may include: | ||
Chills | *Chills. | ||
Cough | *Cough. | ||
Fever | *Fever. | ||
Malaise (feeling ill) | *Malaise (feeling ill). | ||
Shortness of breath | *Shortness of breath. | ||
Symptoms of chronic hypersensitivity pneumonitis may include: | Symptoms of chronic hypersensitivity pneumonitis may include: | ||
Breathlessness, especially with activity | *Breathlessness, especially with activity. | ||
Cough, often dry | *Cough, often dry. | ||
Loss of appetite | *Loss of appetite. | ||
Unintentional weight loss | *Unintentional weight loss. | ||
==What causes | ==What causes Hypersensitivity pneumonitis?== | ||
Hypersensitivity pneumonitis usually occurs in people who work in places where there are high levels of organic dusts, fungus, or molds. | Hypersensitivity pneumonitis usually occurs in people who work in places where there are high levels of organic dusts, fungus, or molds. | ||
Bird fancier's lung is the most common type of hypersensitivity pneumonitis. It is caused by repeated or intense exposure to proteins found in the feathers or droppings of many species of birds. | |||
Farmer's lung is caused by exposure to dust from moldy hay, straw, and grain. | Farmer's lung is caused by exposure to dust from moldy hay, straw, and grain. | ||
These exposures can lead to lung inflammation and acute lung disease. Over time, this acute Hypersensitivity pneumonitis may turn into long-lasting (chronic) lung disease. | |||
Hypersensitivity pneumonitis may also be caused by fungi or bacteria in humidifiers, heating systems, and air Hypersensitivity pneumonitisers found in homes and offices. Exposure to certain chemicals, such as isocyanates or acid anhydrides, can also lead to hypersensitivity pneumonitis. | |||
Hypersensitivity pneumonitis may also be caused by fungi or bacteria in humidifiers, heating systems, and air | |||
==When to seek urgent medical care?== | ==When to seek urgent medical care?== | ||
Call your health care provider if you develop symptoms of hypersensitivity pneumonitis. | Call your health care provider if you develop symptoms of hypersensitivity pneumonitis. | ||
==Diagnosis== | ==Diagnosis== | ||
Your doctor may hear abnormal lung sounds called crackles (rales) when listening to your chest with a stethoscope. | Your doctor may hear abnormal lung sounds called crackles (rales) when listening to your chest with a stethoscope. | ||
Lung changes due to chronic hypersensitivity pneumonitis may be seen on a chest x-ray. Other tests may include: | Lung changes due to chronic hypersensitivity pneumonitis may be seen on a chest x-ray. Other tests may include: | ||
Aspergillus precipitins test | *Aspergillus precipitins test. | ||
Bronchoscopy with washings, biopsy, and bronchoalveolar lavage | *Bronchoscopy with washings, biopsy, and bronchoalveolar lavage. | ||
CBC | *CBC. | ||
High-resolution CT scan of the chest | *High-resolution CT scan of the chest. | ||
Hypersensitivity pneumonitis antibody panels | *Hypersensitivity pneumonitis antibody panels. | ||
Krebs von den Lungen-6 assay (KL-6) | *Krebs von den Lungen-6 assay (KL-6). | ||
Pulmonary function tests | *Pulmonary function tests. | ||
Video-assisted or open-lung biopsy | *Video-assisted or open-lung biopsy. | ||
==Treatment options== | ==Treatment options== | ||
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If you have a chronic form of this disease, your doctor may recommend that you take glucocorticoids (powerful anti-inflammatory medicines). Sometimes treatments used for asthma can help people with hypersensitivity pneumonitis. | If you have a chronic form of this disease, your doctor may recommend that you take glucocorticoids (powerful anti-inflammatory medicines). Sometimes treatments used for asthma can help people with hypersensitivity pneumonitis. | ||
==Where to find medical care for | ==Where to find medical care for Hypersensitivity pneumonitis?== | ||
[http://maps.google.com/maps?q={{urlencode:{{#if:{{{1|}}}|{{{1}}}|map+top+hospital+ | [http://maps.google.com/maps?q={{urlencode:{{#if:{{{1|}}}|{{{1}}}|map+top+hospital+Hypersensitivity pneumonitis}}}}&oe=utf-8&rls=org.mozilla:en-US:official&client=firefox-a&um=1&ie=UTF-8&sa=N&hl=en&tab=wl Directions to Hospitals Treating Hypersensitivity pneumonitis] | ||
==What to expect (Outlook/Prognosis)?== | ==What to expect (Outlook/Prognosis)?== | ||
Most symptoms go away when you avoid or limit your exposure to the material that caused the problem. | Most symptoms go away when you avoid or limit your exposure to the material that caused the problem. | ||
==Possible complications== | ==Possible complications== | ||
The chronic form of this disease may lead to pulmonary fibrosis (a scarring of the lung tissue that often is not reversible). | The chronic form of this disease may lead to pulmonary fibrosis (a scarring of the lung tissue that often is not reversible). | ||
==Prevention== | ==Prevention== | ||
The chronic form can be prevented by avoiding the material that causes the lung inflammation. | The chronic form can be prevented by avoiding the material that causes the lung inflammation. | ||
==Sources== | ==Sources== | ||
http://www.nlm.nih.gov/medlineplus/ency/article/000109.htm | |||
{{WH}} | |||
{{WS}} | |||
[[Category:Pulmonary patient information]] | [[Category:Pulmonary patient information]] | ||
[[Category: | [[Category:Pulmonology]] | ||
[[Category:Allergology]] | |||
[[Category:Allergy patient information]] | |||
[[Category:Patient information]] | [[Category:Patient information]] | ||
[[Category:Overview complete]] | [[Category:Overview complete]] | ||
[[Category: | [[Category:Disease]] | ||
[[Category:Template complete]] | |||
[[Category:Immunology]] | |||
[[Category:Immunology patient information]] | |||
Latest revision as of 15:06, 2 November 2012
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Hypersensitivity pneumonitis |
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Where to find medical care for Hypersensitivity pneumonitis? |
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Hypersensitivity pneumonitis On the Web |
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Directions to Hospitals Treating Hypersensitivity pneumonitis |
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Risk calculators and risk factors for Hypersensitivity pneumonitis |
For the WikiDoc page for this topic, click here
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor-In-Chief: Mohammed A. Sbeih, M.D. [2]
Overview
Hypersensitivity pneumonitis is inflammation of the lungs due to breathing in a foreign substance, usually certain types of dust, fungus, or molds.
What are the symptoms of Hypersensitivity pneumonitis?
Symptoms of acute hypersensitivity pneumonitis may occur 4 - 6 hours after you have left the area where the foreign substance is found, making it difficult to find a connection between your activity and the disease.
Symptoms may include:
- Chills.
- Cough.
- Fever.
- Malaise (feeling ill).
- Shortness of breath.
Symptoms of chronic hypersensitivity pneumonitis may include:
- Breathlessness, especially with activity.
- Cough, often dry.
- Loss of appetite.
- Unintentional weight loss.
What causes Hypersensitivity pneumonitis?
Hypersensitivity pneumonitis usually occurs in people who work in places where there are high levels of organic dusts, fungus, or molds. Bird fancier's lung is the most common type of hypersensitivity pneumonitis. It is caused by repeated or intense exposure to proteins found in the feathers or droppings of many species of birds.
Farmer's lung is caused by exposure to dust from moldy hay, straw, and grain. These exposures can lead to lung inflammation and acute lung disease. Over time, this acute Hypersensitivity pneumonitis may turn into long-lasting (chronic) lung disease.
Hypersensitivity pneumonitis may also be caused by fungi or bacteria in humidifiers, heating systems, and air Hypersensitivity pneumonitisers found in homes and offices. Exposure to certain chemicals, such as isocyanates or acid anhydrides, can also lead to hypersensitivity pneumonitis.
When to seek urgent medical care?
Call your health care provider if you develop symptoms of hypersensitivity pneumonitis.
Diagnosis
Your doctor may hear abnormal lung sounds called crackles (rales) when listening to your chest with a stethoscope. Lung changes due to chronic hypersensitivity pneumonitis may be seen on a chest x-ray. Other tests may include:
- Aspergillus precipitins test.
- Bronchoscopy with washings, biopsy, and bronchoalveolar lavage.
- CBC.
- High-resolution CT scan of the chest.
- Hypersensitivity pneumonitis antibody panels.
- Krebs von den Lungen-6 assay (KL-6).
- Pulmonary function tests.
- Video-assisted or open-lung biopsy.
Treatment options
First, the foreign substance must be identified. Treatment involves avoiding this substance in the future. Some people may need to change jobs if they cannot avoid the substance at work.
If you have a chronic form of this disease, your doctor may recommend that you take glucocorticoids (powerful anti-inflammatory medicines). Sometimes treatments used for asthma can help people with hypersensitivity pneumonitis.
Where to find medical care for Hypersensitivity pneumonitis?
Directions to Hospitals Treating Hypersensitivity pneumonitis
What to expect (Outlook/Prognosis)?
Most symptoms go away when you avoid or limit your exposure to the material that caused the problem.
Possible complications
The chronic form of this disease may lead to pulmonary fibrosis (a scarring of the lung tissue that often is not reversible).
Prevention
The chronic form can be prevented by avoiding the material that causes the lung inflammation.
Sources
http://www.nlm.nih.gov/medlineplus/ency/article/000109.htm Template:WH Template:WS