The Substance Used to Provide Radiographic Contrast in the Gastrointestinal

question 13

Multiple Choice

The substance used to provide radiographic contrast in the gastrointestinal tract of patients who may have a perforation of the alimentary canal is:

• A) barium sulfate.
• B) water-soluble iodine compound.
• C) iodized oil.
• D) glucagon.

---

Definitions:

Nominal GDP

The gross domestic product measured in current prices, without adjustment for inflation.

Classical Dichotomy

The theoretical separation of nominal and real variables in the economy, suggesting that changes in the money supply only affect nominal variables.

Nominal Variables

Economic variables measured in current prices, without adjusting for inflation, reflecting their value in terms of current money.

Real Variables

Economic variables that have been adjusted for inflation, allowing for the comparison of quantities over time.