To diagnose pneumonia, the healthcare provider begins with a thorough medical history and physical exam.
The healthcare provider may order several tests to help diagnose the pneumonia.
Chest x-rays can often find out if a person has pneumonia.
A CT scan may also be done.
Blood tests and sputum tests are very helpful to find out the cause of pneumonia.
A biopsy (taking a lung tissue sample via needle, tube, or surgery) may be done in more severe cases.