The principle of DXA scanning relies upon the
a. attenuation of two discrete photon energy levels through soft tissue and bone.
b. measurement of scatter energy from the patient at two energy levels.
c. measurement of scatter photon energy subtracted from primary photon energy.
d. ratio of Bremsstrahlung and characteristic radiation production.
a. attenuation of two discrete photon energy levels through soft tissue and bone.
You might also like to view...
A(n) ________ recommended childhood and adolescent immunization schedule is issued by the American Academy of Pediatrics, the Advisory Committee on Immunization Practices of the CDC, and the American Academy of Family Physicians
a. weekly b. monthly c. quarterly d. annual
You have been called to the home of a 62-year-old male who has failed to go to dialysis for the past week and is now unresponsive. After placing him on high-flow oxygen and obtaining a set of vital signs—pulse rate 46 beats/min, respirations 30 breaths/min, blood pressure 242/136 mm Hg, skin pale, cool, and clammy—you perform a physical exam. You observe that the patient's hands and feet have pitting edema, his breath smells strongly of urine, and his skin is covered in a white, dry, and crusty residue. As you place your ECG electrodes, you expect to find:
A) Peaked T waves B) A third-degree heart block C) A depressed ST segment with inverted T waves D) ST segment elevation