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

A PA projection of the stomach and duodenum is often performed using a 14 × 17 inch (35 × 43 cm) IR. Which of the following describes the plane that is centered to the grid for this projection?

The main functions of the large intestine are:1.   digestion of food.2.   reabsorption of fluids.3.   elimination of waste products.

The main functions of the small bowel are _____ of food.1.   digestion 2.   absorption3.   storage

The cystic duct and hepatic duct unite and are  called the:

Stomach examinations using barium sulfate have some degree of risk for patients who are

Nonionic iodine contrast agents differ from ionic agents in that nonionics

Preparation of the intestinal tract for examination of the colon includes:1.   laxatives.2.   dietary restrictions.3.   cleansing enemas.

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

An undesirable characteristic of ionic contrast agents is their