1 Complete the requirements of at least one major degree program. 2  Complete at least 120 semester hours (some degree programs require more than 120 hours). 3  Complete at least 60 semester hours at Rice University.4  Complete at least 48 hours of all degree work in upper-level courses (at the 300 level or higher). Complete the requirements of at least one major degree program. 2  Complete at least 120 semester hours (some degree programs require more than 120 hours). 3  Complete at least 60 semester hours at Rice University.
X-rays are waves of electromagnetic radiation that are absorbed differently by different tissues. Bones absorb them well because they are dense. A skeletal X-ray specifically looks at your skeletonâwhich is made up of all the bones in your body.
Bone density scanning, also called dual-energy x-ray absorptiometry (DEXA) or bone densitometry, is an enhanced form of x-ray technology that is used to measure bone loss. DEXA is today's established standard for measuring bone mineral density (BMD). An x-ray (radiograph) is a noninvasive medical test that helps physicians diagnose and treat medical conditions. Imaging with x-rays involves exposing a part of the body to a small dose of ionizing radiation to produce pictures of the inside of the body. X-rays are the oldest and most frequently used form of medical imaging. DEXA is most often performed on the lower spine and hips.