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During fetal development, the highly vascular structure that serves as respiratory, nutritive, and excretory organs of the fetus is called the

Advantages of battery powered mobile x-ray units include their            1.  ability to store a large quantity of energy          2.  ability to store energy for extended periods of time          3.  lightness and ease of maneuverability

The higher radiographic contrast that results from a reduction in the size of the exposure field is primarily related to the

The control dosimeter that comes from the company should be

Which type of imaging procedure or study requires the patient to sign an informed consent?

To compensate for the normal degree of kyphosis of the sacrum in the anteroposterior projection, the central ray should be directed 

The large, shield-shaped cartilage that forms the anterior portion of the larynx is called the

The speed at which barium can be expected to flow from the stomach can be increased by placing the patient in the

Body substances and fluids that are considered infectious or potentially infectious include                         1.  sputum                   2.  synovial fluid                   3.  cerebrospinal fluid

According to the National Council on Radiation Protection, the monthly gestational dose equivalent limit for embryo/fetus of a pregnant radiographer is