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Chest X-rayRead the Chest X-ray article » What is a chest X-ray?A chest X-ray is a radiology test that involves exposing the chest briefly to radiation to produce an image of the chest and the internal organs of the chest. An X-ray film is positioned against the body opposite the camera, which sends out a very small dose of a radiation beam. As the radiation penetrates the body, it is absorbed in varying amounts by different body tissues depending on the tissue's composition of air, water, blood, bone, or muscle. Bones, for example, absorb much of the X-ray radiation while lung tissue (which is filled with mostly air) absorbs very little, allowing most of the X-ray beam to pass through the lung.
What is a shadow on a chest X-ray?Due to the differences in their composition (and, therefore, varying degrees of penetration of the X-ray beam), the lungs, heart, aorta, and bones of the chest each can be distinctly visualized on the chest X-ray. The X-ray film records these differences to produce an image of body tissue structures and these are shadows seen on the X-ray. The white shadows on chest X-ray represent more dense or solid tissues, such as bone or heart, and the darker shadows on the chest X-ray represent air filled tissues, such as lungs. How is the chest X-ray procedure performed?Patients obtaining a chest X-ray will often be requested to use an X-ray gown, and extra metallic objects such as jewelry are removed from the chest and/or neck areas. These objects can block X-ray penetration, making the result less accurate. Patients may be asked to take a deep breath and hold it during the chest X-ray in order to inflate the lungs to their maximum, which increases the visibility of different tissues within the chest. The chest X-ray procedure often involves a view from the back to the front of the body as well as a view from the side. The view from the side is called a lateral ... Recommended Reading Related to Chest X-rayWhat is low blood pressure?Blood pressure is the force exerted by circulating blood on the walls of blood vessels. It constitutes one of the critically important signs of life or vital signs which include heart beat, breathing, and temperature. Blood pressure is generated by the heart pumping blood into the arteries modified by the response of the arteries to the flow of blood. An individual's blood pressure is expressed as systolic/diastolic blood pressure, for example, 120/80.The systolic blood pressure (the top number) represents the pressure in the arteries as the muscle of the heart contracts and pumps blood into them. The diastolic blood pressure (the bottom number) represents the pressure in the arteries as the muscle of the heart relaxes following its contraction. Blood pressure always is higher when the heart is pumping (squeezing) than when it is relaxing. The range of systolic blood pressure for most healthy adults falls between 90 and 120 mil... Other Related Chest X-ray ArticlesEmergency Contact for Johns Creek
Nearby Johns Creek Hospitals *![]() Gwinnett Medical Center Duluth ![]() Glancy Rehabilitation Center ![]() Emory Johns Creek Hospital ![]() North Fulton Regional Hospital ![]() Peachford Behavioral Health System of Atlanta ![]() Gwinnett Medical Center ![]() Northside Hospital Forsyth ![]() Saint Joseph's Hospital of Atlanta ![]() Children's Healthcare at Scottish Rite ![]() Northside Hospital ![]() SummitRidge Center for Psychiatry & Addiction Medicine ![]() Emory Eastside Medical Center ![]() Atlanta VA Medical Center ![]() DeKalb Medical Center ![]() Wesley Woods Geriatric Hospital ![]() Children's Healthcare at Egleston ![]() Emory University Hospital ![]() DeKalb Medical ![]() Wellstar Windy Hill Hospital ![]() Hillside Hospital ![]() Laurel Heights Hospital ![]() Piedmont Hospital ![]() Shepherd Center ![]() Kindred Hospital Atlanta ![]() Emory University Hospital Midtown ![]() Select Specialty Hospital Atlanta ![]() Atlanta Medical Center ![]() Wellstar Kennestone Hospital ![]() DeKalb Medical Center at Hillandale ![]() Grady Health System ![]() Emory Adventist Hospital ![]() Ridgeview Institute ![]() Georgia Regional Hospital at Atlanta ![]() Northside Hospital Cherokee ![]() Devereux Georgia Treatment Network ![]() Rockdale Medical Center ![]() Wellstar Cobb Hospital ![]() Regency Hospital of South Atlanta ![]() South Fulton Medical Center ![]() Barrow Regional Medical Center ![]() Northeast Georgia Medical Center ![]() Northeast Georgia Medical Center Lanier Park Campus ![]() Walton Regional Medical Center ![]() Anchor Hospital ![]() Piedmont Mountainside Hospital ![]() Southern Regional Medical Center ![]() Newton Medical Center Featured Articles*Provider Directory Terms of Use: The WebMD 'Provider Directory' is provided by WebMD for use by the general public as a quick reference of information about Providers. The Provider Directory is not intended as a tool for verifying the credentials, qualifications, or abilities of any Provider contained therein. Inclusion in the Provider Directory does not imply recommendation or endorsement nor does omission in the Provider Directory imply WebMD disapproval. |

















































