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Answer to your Health Question

Question (10/30/2012):

Title: A case of Allergic Alveolitis | Farmer's lung.

I had a pulmonary granuloma 7.rmm in the middle lobe of my right lung.

There was also moderate pleural thickening as well as patchy ground-glass opacities.

A tissue biopsy was taken as well as pulmonary function tests.

I have elevated CO2 in my blood.

I have blood oxygen desaturation at rest and with exercise.

I'm on 2L of O2 continuously.

I live right behind a coop that takes in wheat cleans it and transfers it to trucks and railroad cars.

A lot of times before it get cleaned and loaded it gets rained on and moldy.

They also gin bale cotton as well as loading tender trucks with fertilizer and used in sprayers on fields.

My husband also works at this place and comes home with the wheat dust and chaff and fertilizer on his clothes.

We are also surrounded in our rural community by fields that are plowed and planted with yearly crops.

I also have a weak immune system and I receive 30 grams monthly of IgG infusions.

Could all of these circumstances be what caused the Allergic Aveolitis better known as farmer's lung?

Answer:

Thank you very much for your question.

The term extrinsic allergic alveolitis (EAA) refers to a group of lung diseases resulting from exposure to dusts of animal and vegetable origin.

Intense or prolonged exposure to animal or vegetable dusts can result in extrinsic allergic alveolitis.

The dust particles must be 5 microns or smaller to get into the alveoli.

Animal and vegetable dusts are complex mixtures originating from many different sources such as husks, bark, wood, animal dander, and microorganisms including bacteria and fungi.

The microorganisms produce toxic chemicals that form part of the mixture.

Insects and insect fragments, bird droppings and dried urine of rats may also be found in the dusts.

Moldy hay, straw, grain and feathers are other sources of dust that cause extrinsic allergic alveolitis.

Farmers' lung Disease is an Example of Extrinsic Allergic Alveolitis.

Exposure to moldy hay, straw and grain may cause Farmers' lung Disease.

The means for reducing dust exposure (dust control) include engineering control and personal protective equipment.

Methods of engineering control include local exhaust ventilation, general ventilation, and process enclosure and process isolation.


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