An extremity x-ray is an image of the hands, wrist, feet, ankle, leg, thigh, forearm humerus or upper arm, hip, shoulder or all of these areas. The term "extremity" often refers to a human limb.
X-rays are a form of radiation that passes through the body to form an image on film. Structures that are dense (such as bone) will appear white. Air will be black, and other structures will be shades of gray.
The test is done in a hospital radiology department or in the health care provider's office. X-ray is done by an x-ray technologist.
You will need to hold still as the x-ray is taken. You may be asked to change position, so more x-rays can be taken.
Tell your provider if you are pregnant. Remove all jewelry from the area being imaged.
In general, there is no discomfort. You may be slightly uncomfortable while the leg or arm is put in place for the x-ray.
Your provider may order this test if you have signs of:
The x-ray shows normal structures for the age of the person.
Abnormal results may be due to:
Other conditions for which the test may be performed:
There is low-level radiation exposure. X-rays are monitored and regulated to provide the smallest amount of radiation exposure needed to make the image. Most experts feel that the risk is low compared with the benefits.
Pregnant women and children are more sensitive to the risks of an x-ray.
Reviewed By: Jason Levy, MD, Northside Radiology Associates, Atlanta, GA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.