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A 53-year-old Caucasian male comes in with a 2-week history of severe headaches mostly during the night. The patient is pacing while he is talking. During the history taking, he states that the symptoms of pain around one eye last for 30 to 90 minutes in duration. He also states that there is ipsilateral lacrimation, conjunctival injection, and nasal congestion during the attacks. The patient states that he has had these headaches two or more times in a day over a period of several weeks. He cannot point to one thing that triggers them. On examination, the patient has features of partial Horner’s syndrome. His vital signs are temp. 97.0 F, HR 80/min, RR 16/min, BP 126/80 mmHg. The patient’s headache is most likely:

Photoelectric interactions involves the _______ of an _______ shell electron.

The exposure field should never exceed the size of the IR.

Grids do not reduce the production of scatter radiation.  Explain why this is a TRUE statement:   (2 pts)

Compton radiation:

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 ?