How is pneumonia diagnosed?
A doctor will diagnose pneumonia on the basis of a physical exam and test results. During a physical examination a doctor may use a stethoscope to listen for crackles or abnormal sounds caused by breathing. An X-ray can be used to confirm pneumonia and work out which part of the lungs are affected. A sputum sample can confirm the organism causing the pneumonia and the most suitable antibiotics or antifungals needed to treat them.