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Types of Pneumonia Tests

Pneumonia tests can vary depending on the suspected cause of the pneumonia, the severity of the illness, and other factors. Here are some common types of pneumonia tests:

Physical Examination: A healthcare provider will listen to your lungs using a stethoscope. Pneumonia often produces crackling or bubbling sounds in the lungs.

Chest X-ray: This imaging test can reveal areas of infection or inflammation in the lungs.

Blood Tests: Blood tests can help determine the type of infection causing pneumonia and assess the severity of the illness. Common blood tests include:

Complete Blood Count (CBC): To check for elevated white blood cell count, which can indicate an infection.

C-reactive protein (CRP): Elevated levels suggest inflammation, often indicating an infection.

Procalcitonin: Elevated levels can indicate a bacterial infection.

Sputum Culture and Gram Stain: If you're producing sputum (mucus coughed up from the lungs), a sample may be collected and analyzed to identify the bacteria causing the infection.

Pulse Oximetry: This simple test measures the oxygen level in your blood. Low oxygen levels can indicate pneumonia or other respiratory problems.

Bronchoscopy: In this procedure, a thin, flexible tube with a light and camera (bronchoscope) is passed through your mouth or nose into your lungs. This allows the doctor to view the airways and collect samples of lung tissue, fluids, or mucus for testing.

CT Scan: A computed tomography (CT) scan provides detailed images of the lungs and can help identify complications or unusual cases of pneumonia.

Urine Antigen Test: Some types of pneumonia, such as pneumonia caused by Streptococcus pneumoniae or Legionella pneumophila, can be detected through a urine test that identifies specific antigens produced by these bacteria.

Viral Testing: If a viral infection is suspected, various tests such as polymerase chain reaction (PCR) may be done on respiratory secretions to identify the virus causing pneumonia.

The specific tests used will depend on factors such as the patient's symptoms, medical history, and the suspected cause of pneumonia. It's essential to consult a healthcare provider for proper diagnosis and treatment.

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