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Explore overview, symptoms, causes, treatment, diagnosis, prevention, and FAQ articles for this condition.
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Prevention of Pneumocystis pneumonia
Pneumocystis pneumonia, often abbreviated as PCP, is an opportunistic lung infection caused by Pneumocystis jirovecii . It develops most often when the immune system is weakened, especially when cell-mediated immunity is impaired. Because the organism is widespread and can be present…
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FAQ about Pneumocystis pneumonia
Pneumocystis pneumonia, often shortened to PJP or PCP , is a lung infection that most often affects people with weakened immune systems. This FAQ explains what the illness is, why it happens, how doctors diagnose it, how it is treated, and…
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What is Pneumocystis pneumonia
Pneumocystis pneumonia is a lung infection caused by Pneumocystis jirovecii , a microscopic fungus that primarily affects the alveoli , the tiny air sacs where oxygen and carbon dioxide are exchanged. The condition develops when this organism multiplies in the lungs…
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Symptoms of Pneumocystis pneumonia
Pneumocystis pneumonia, often abbreviated PCP, causes symptoms that are dominated by impaired gas exchange in the lungs. The most common pattern is progressive shortness of breath , usually accompanied by a dry cough , low-grade fever , and a sense of…
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Causes of Pneumocystis pneumonia
What causes Pneumocystis pneumonia? In most cases, it develops when the lungs become infected with Pneumocystis jirovecii at a time when the immune system is unable to keep the organism under control. The disease is not simply the result of exposure…
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Diagnosis of Pneumocystis pneumonia
Pneumocystis pneumonia, often abbreviated as PJP or PCP, is a lung infection caused by the fungus Pneumocystis jirovecii . It is identified through a combination of clinical suspicion, imaging studies, laboratory testing, and sometimes direct examination of respiratory samples. Because the…
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Treatment for Pneumocystis pneumonia
The treatment of Pneumocystis pneumonia (PCP) relies on antimicrobial therapy directed at the organism itself, along with supportive measures that correct the physiological consequences of lung inflammation and impaired gas exchange. The main treatment is trimethoprim-sulfamethoxazole (TMP-SMX), which targets Pneumocystis jirovecii,…