What does chest radiograph 228 mean?

Chest X-ray (PACEST X-ray) is a medical examination method, which is used to evaluate the images of internal structures and organs of human chest. "228" may mean the 228th shooting on a specific date or for a specific purpose.

Chest radiographs usually require patients to stand or sit down and put their chest close to the X-ray machine, so that X-ray radiation can pass through the chest to take images of the chest and internal structures. This kind of examination is usually used to evaluate whether there are abnormalities in lung, heart, chest and chest bone structure, such as lung infection, pulmonary effusion, emphysema and fracture. Because of the different density of human tissues, X-ray irradiation will produce different degrees of shadows in different tissues or organs, and doctors can judge lesions or abnormalities by observing these shadows.