РефератыИностранный языкEfEffects Of Aspergillosis Nosocomial Infections Essay Research

Effects Of Aspergillosis Nosocomial Infections Essay Research

Effects Of Aspergillosis, Nosocomial Infections Essay, Research Paper


Aspergillus spp. is a type of fungus that forms spores. It is normally found in soil,


water, and decaying vegetation. In the hospital environment, the spores settle in some


part of the ventilation system. Spores are also stirred up from construction and


renovation. Additional sources of the fungal spores could be contaminated or wet wood,


bird droppings in air ducts, or decaying fireproofing materials. The fungus causes


pneumonia in a host with a weak or otherwise compromised immune system. Patients at


risk are those undergoing organ transplant or bone marrow transplants, and depending on


the type of transplant, mortality rates are as high as 95%. Bone marrow transplant


patients, the highest risk group, should be treated like they are immunosuppressed for up


to four weeks after the procedure. The portal of entry is through the upper respiratory


track. The infection then becomes

systemic and is spread into multiple deep organs.


Because few reliable tests are available for diagnosing pneumonia due to Aspergillus,


clinicians often use a lung biopsy. Blood culture techniques fail because antibody


responses in immunocompromised patients give false indications of infection.


Identification of a source of the fungi is difficult, but can be determined through careful


evaluation of each additional case. A better solution is to develop protected areas for high


risk patients. These protected areas would have special air filtration systems that direct air


flow only in certain directions. The doors to these rooms would have vacuum seals and


would have a higher pressure inside than outside. The end goal of the protected areas


would be to increase air flow in the room to the point that the air becomes essentially


sterile and to maintain a clean environment. The costs of implementing a protected area


system may be prohibitively high.

Сохранить в соц. сетях:
Обсуждение:
comments powered by Disqus

Название реферата: Effects Of Aspergillosis Nosocomial Infections Essay Research

Слов:323
Символов:2233
Размер:4.36 Кб.