Which projection of the colon best demonstrates the descending colon?

Which of the following best describes the administration of barium for an esophagram being performed for esophageal varices?

Which projection of the colon best demonstrates the Rectosigmoid are with less superimposition ?

Which drug may be given to the patient before a double-contrast examination of the colon to relax the patient’s anxiety?

Which of the following are the essential projections for an esophagus series?1.   AP or PA2.   Lateral3.   PA oblique

The degree of body rotation for the PA oblique projection (RAO or LAO) of the large intestine is _____ degrees.

The opening between the stomach and the duodenum is termed the:

How long does it take for the average stomach to empty?

The ideal iodinated contrast agent would have what characteristic(s)?1.   High osmolality2.   Low osmolality3.   Nonionic chemical structure4.   Water solubility (hydrophilic)5.   Three or more iodine atoms per molecule

Which methods are used to administer barium for a radiographic examination of the small intestine?1.   By mouth2.   Reflux filling3.   Enteroclysis