If a 30-year-old man has a resting heart rate of 60 beats/min and a maximum heart rate of 190 beats/min, his target heart rate is ____ beats/min.

Anatomical limitations may require that the radiographer knowledgably alter which of the following to obtain a diagnostic image?

A) Horizontal angulation B) Vertical angulation C) Positioning of the image receptor D) All of the above

Black stool that represents significant blood in the stool is known as ____________________.

Fill in the blank(s) with the appropriate word(s).