There are steps in the process of chest x-ray. First just take off your clothes from the waist up and put fhe gown on,without wearing the necklace and bra. Second please stand over there and do not move. Next you will raise your arms up shoulder high,take a deep breath about 5 seconds, hold it, and let it out. Finally when, then follow the steps to make the docter can see changes of pulmonary illness.