Module 5 lecture quiz

Which of the following is TRUE concerning radiation safety and the amount of distance that is placed between the source and the person being exposed? A. as distance increases, the amount of exposure decreases B. as distance decreases, the amount of exposure decreases C. as distance increases, the amount of exposure increases D. distance does not affect the amount of exposure

A. as distance increases, the amount of exposure decreases

When a radiograph has to be repeated, due to an error, how much more exposure to radiation will a patient receive? A. double B. three times C. four times D. ten times

A. double

What are the three "cardinal principles" of radiation safety? A. time, distance and shielding B. time, distance and limiting C. time, shielding and questioning D. limiting, allowing and knowledgeable

A. time, distance and shielding

Which of the following is NOT true concerning x-rays? A. man-made source of radiation B. linger in x-ray room for awhile, so you have to wait before re-entering C. travel at the speed of light D. source of electromagnetic energy

B. linger in x-ray room for awhile, so you have to wait before re-entering

What are the two sources of radiation that we are exposed to? A. nuclear fallout and x-rays B. man-made and background C. radionuclides and man-made D. background and medical x-rays

B. man-made and background

Which of the following is TRUE concerning radiation safety and the amount of time used during an exposure? A. the more time, the less exposure B. the less time, the less exposure C. the radiographer has no control over the time of exposure D. time does not affect the amount of exposure

B. the less time, the less exposure

Which of the following is NOT true regarding shielding? A. shielding relates to protecting the reproductive organs B. as shielding increases, radiation protection increases C. shielding is used only on babies D. gonadal shielding should be used when reproductive organs are within 4 - 5 cm of x-ray beam

C. shielding is used only on babies

Which of the following is NOT a source of background radiation? A. sun B. stars C. x-rays D. naturally occurring radioactive substances

C. x-rays

Each time a patient has a radiologic exam, they are exposed to: A. ultraviolet radiation B. infrared radiation C. nuclear radiation D. ionizing radiation

D. ionizing radiation

Who is primarily responsible for protecting the patient and other members of the public from overexposure to radiation? A. physicians B. radiation physicists C. radiologists D. radiographers

D. radiographers