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Pneumonia
About Pneumonia
Pneumonia is an infection that inflames the air sacs in one or both lungs, which may then fill with fluid or pus. This condition can range in severity from mild to life-threatening, affecting individuals of all ages.
Common Symptoms
- cough that may produce phlegm
- fever
- chills
- difficulty breathing or shortness of breath
- chest pain when breathing or coughing
- fatigue
- nausea
- vomiting
- diarrhea
- confusion or changes in mental awareness (especially in older adults)
Diagnosis
Diagnosis typically involves a physical examination, where a doctor listens to the lungs for abnormal sounds. A chest X-ray is commonly used to confirm the presence of pneumonia and determine its extent. Blood tests or sputum tests may also be performed to identify the specific germ causing the infection.
Causes
Pneumonia is primarily caused by bacteria, viruses, or fungi. Common bacteria include Streptococcus pneumoniae, while viruses like influenza or RSV can also be responsible. In some cases, aspiration of food, liquid, or vomit into the lungs can also lead to aspiration pneumonia.
Treatment Overview
Conventional treatments for pneumonia often depend on the cause; bacterial pneumonia may be treated with antibiotics, while viral pneumonia care is typically supportive. Hospitalization may be necessary for severe cases, particularly in young children, older adults, or individuals with weakened immune systems. Some individuals also explore complementary approaches, which may include rest, hydration, and nutritional support, but these are not substitutes for medical care. It is important to discuss all treatment options with a healthcare provider.
Prognosis & Outlook
The prognosis for pneumonia generally varies depending on the specific cause, the individual's age, and their overall health. With appropriate medical treatment, many people recover fully. However, complications can sometimes arise, and in severe cases, pneumonia may be life-threatening.
Types & Variants
Community-acquired pneumonia (CAP)
This is the most common type of pneumonia, occurring outside of hospitals or other healthcare facilities.
Hospital-acquired pneumonia (HAP)
This type develops during a hospital stay for another illness. It can be more serious as the bacteria involved may be more resistant to antibiotics.
Aspiration pneumonia
This occurs when you inhale food, drink, vomit, or saliva into your lungs, which can introduce bacteria and cause infection.
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