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The BEST practice to lower occupational exposure from scatter radiation, when using the C-arm, is to have the x-ray tube _______.

During c-arm procedures, standing on the side of the _______ is safest because there is more scatter produced at the entrance surface of the patient.

The BEST place for a technologist to stand during a portable chest exam, in order to lower occupational dose, is:

The term  isotropic  refers to:

Of the following devices, which will reduce the level of scatter radiation reaching the IR ?

The volume of tissue irradiated is determined by:

Tess is taking an AP Lumbar spine image and does not apply collimation.  Dawn is also taking an AP Lumbar spine image, but applies adequate side-to-side collimation.  Which of the following is true regarding Dawn’s image?

Which of the following clinical findings is characteristic of Osgood-Schlatter disease?

A 76-year-old man with a past medical history of hyperlipidemia and diabetes mellitus presents to the emergency room with a 2-hour history of acute, severe, “crushing” left precordial chest pain; it is associated with nausea, vomiting, diaphoresis, and altered mental status. Physical exam is notable for an ashen and cyanotic appearance, hypotension, rapid and weak peripheral pulsations, distant heart sounds, elevated jugular venous distension, and pulmonary crackles. A stat bedside chest x-ray reveals pulmonary vascular congestion and Kerley B lines. What assertion can be made from the diagnostic workup of this patient?

A 20-year-old man presents with a sudden onset of vomiting, headache, vision changes, numbness and tingling of extremities, difficulty speaking, difficulty writing, loss of coordination, and loss of balance. His past medical history is significant for sickle cell anemia. Physical exam findings are consistent with acute cerebrovascular insufficiency. Early detection and prevention of stroke in sickle cell anemia is now possible by using screening tests. What imaging modality is recommended as a screening test for cerebrovascular disease/stroke in sickle cell disease (SCD) patients?