Quiz: CT Scans: What They Are and What to Expect

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1. Q1.According to this article, how does a CT scan create its pictures?

   AIt uses special X-ray equipment and a computer to make detailed pictures in thin slicesBIt uses a powerful magnet and radio wavesCIt uses high-energy sound wavesDIt uses a small amount of radioactive sugar

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2. Q2.What is the contrast material (dye) used for during a CT scan, according to this article?

   ATo highlight specific areas and make the pictures clearerBTo reduce the amount of radiation usedCTo replace the need for the scannerDTo put the person to sleep

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3. Q3.According to this article, how does the radiation from a CT scan compare with a plain X-ray?

   ACT uses more radiation than a plain X-ray, but the added risk from a single scan is still smallBCT uses no radiation at allCCT and plain X-rays use exactly the same amountDCT uses far less radiation than a plain X-ray

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4. Q4.What does this article say a person can expect during a CT scan?

   ALying still on a table that passes through a large donut-shaped machine, sometimes holding their breathBStanding up and walking through the machineCA procedure that always requires an overnight hospital stayDA painful procedure that lasts several hours

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This quiz checks understanding of educational content only. It is not medical advice. Read: CT Scans: What They Are and What to Expect.