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What color does negative contrast show up as on the radiograph?

When doing contrast studies of the urinary bladder, after survey radiographs are taken, what is done first in the contrast procedure?

Radiopaque stones would be visualized on a survey radiograph, therefore eliminating the need for further studies. True or False?

What positive insoluble contrast agent is used when studying the esophagus?

This positive-contrast medium is completely insoluble in the gastrointestinal tract and is not absorbed by the abdomen or thorax if leakage occurs.

What does MAC stand for?

Nitrous Oxide and Carbon Dioxide are considered safer than room air for negative contrast agents because their increased solubility is less likely to cause serious air embolizations. True or False?

In x-ray production, _______________% is heat and _______________ % is x-rays. 

Why should caution be taken when moving gas cylinders? [Blank1]

What agency regulates Radiologic Safety for Alabama?