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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 Lynwood
Nearby Lynwood Hospitals *![]() St Francis Medical Center ![]() Martin Luther King Jr MAC Service Center ![]() Rancho Los Amigos National Rehabilitation Center ![]() Promise Hospital of East Los Angeles Suburban Medical Center Campus ![]() Downey Regional Medical Center ![]() Kaiser Permanente Downey Medical Center ![]() Community Hospital of Huntington Park ![]() Bellflower Medical Center ![]() Lakewood Regional Medical Center ![]() Coast Plaza Doctors Hospital ![]() Memorial Hospital of Gardena ![]() Vista Hospital of South Bay ![]() College Hospital Cerritos ![]() Los Angeles Community Hospital ![]() East Los Angeles Doctors Hospital ![]() Metropolitan State Hospital ![]() Norwalk Community Hospital ![]() Promise Hospital of East Los Angeles ![]() Orthopaedic Medical Center ![]() Beverly Hospital ![]() Long Beach Memorial Medical Center ![]() Miller Children's Hospital ![]() Pacific Hospital of Long Beach ![]() California Hospital Medical Center ![]() LAC Harbor UCLA Medical Center ![]() White Memorial Medical Center ![]() Centinela Freeman Regional Medical Center Centinela Campus ![]() Los Angeles Metropolitan Medical Center Hawthorne Campus ![]() LAC + USC Medical Center ![]() LAC + USC Medical Center Women's & Children's Hospital ![]() Presbyterian Intercommunity Hospital ![]() Monterey Park Hospital ![]() Tri-City Regional Medical Center ![]() USC Norris Comprehensive Cancer Center ![]() USC University Hospital ![]() Good Samaritan Hospital ![]() Pacific Alliance Medical Center ![]() Los Angeles Metropolitan Medical Center ![]() Kaiser Mental Health Center ![]() Community Hospital of Long Beach ![]() St Mary Medical Center ![]() St Vincent Medical Center ![]() Barlow Respiratory Hospital ![]() Garfield Medical Center ![]() Kindred Hospital La Mirada ![]() La Palma Intercommunity Hospital ![]() Shriners Hospitals for Children Los Angeles ![]() Kaiser Permanente South Bay Medical Center ![]() Providence Little Company of Mary Medical Center Torrance ![]() City of Angels Medical Center Ingleside Campus ![]() Kindred Hospital Los Angeles ![]() Gateways Hospital & Mental Health Center ![]() Temple Community Hospital ![]() Whittier Hospital Medical Center ![]() Los Alamitos Medical Center ![]() Torrance Memorial Medical Center ![]() VA Long Beach Healthcare System ![]() Alhambra Hospital Medical Center ![]() Del Amo Hospital ![]() BHC Alhambra Hospital ![]() VA Greater Los Angeles HealthCare System ![]() Greater El Monte Community Hospital ![]() Kaiser Permanente West Los Angeles Medical Center ![]() Hollywood Presbyterian Medical Center ![]() Childrens Hospital Los Angeles ![]() Olympia Medical Center ![]() Kaiser Permanente Los Angeles Medical Center ![]() Miracle Mile Medical Center ![]() Brotman Medical Center ![]() San Gabriel Valley Medical Center ![]() Anaheim General Hospital ![]() Hollywood Community Hospital ![]() West Anaheim Medical Center ![]() Glendale Memorial Hospital & Health Center ![]() Marina Del Rey Hospital 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. |













































































