A 45 year old male complains of vague chest discomfort associated with dyspnea. This pain increases with exertion. He is also a “nervous” person and is prone to anxiety. An abnormality of which of the following is most specific for chest pain of cardiac etiology?

PBL stands for _______  _______  _______.

The higher the atomic # (Z) of a part or substance, the _______ the number of photoelectric interactions.

Bone has a higher atomic # than soft tissue, therefor bone will:

Select either the correct beam restrictor for the following.  Answers may be used more than once; only once correct answer per question.

As collimation decreases (field size opens), the quantity of scatter radiation:

State if the following statement is either True or False.  THEN … explain why:   (2 pts) “Scatter radiation adds unwanted density to the image, that is unrelated to patient anatomy.”

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

Compton radiation:

Scatter is primarily the result of ________ interactions.