BLY FINAL
Quiz yourself by thinking what should be in
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| show | describes changes in the x-ray beam as is travels through the patient
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| Which Photon- tissue interaction makes radiography possible because of its creation of contrast? | show 🗑
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| show | Compton's
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| The traditional unit of absorbed does is the | show 🗑
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| Measurement of positive and negative particles created when radiation ionizes atoms in the air define the: | show 🗑
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| show | varies for different types of radiation
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| Graphs that demonstrate the relationship between radiation received and the organism's response are called | show 🗑
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| Medical x-rays are examples of | show 🗑
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| show | threshold
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| Increased dose equals increased probability of effects best describes which of the following? | show 🗑
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| The cumulative occupational exposure for a 22 year old radiographer is; | show 🗑
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| The annual effective absorbed dose equivalent limit for the general public, assuming frequent exposure, is: | show 🗑
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| show | 1/32 inch Pb Equivalent
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| show | 90
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| The minimum source-to-skin distance for fixed fluoroscopy is | show 🗑
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| show | 12 inches
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| The use of gonadal shielding on female patients may reduce gonad dose by up ____ percent | show 🗑
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| show | oxygen enhancement ratio
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| show | NRC
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| The blood count is depressed following a whole body dose equivalent of at least how many rads? | show 🗑
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| show | 270 mSv
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| show | Sigmoid threshold dose-response curve
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| show | To minimize the risk of harmful biologic effects for the general public, patients, and radiologic professional
s
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| show | Free radicals
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| show | DNA
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| show | Mitosis
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| The most common effect from exposure to ionizing radiation is | show 🗑
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| show | at dose of radiation much higher than that used in radiography
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| Radiation doses up to _______are considered low risk to the embryo-fetus. | show 🗑
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| A concept of radiologic practice that encourages radiation users to adopt measures that keep the dose to the patient and themselves at a minimum level is called: | show 🗑
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| are nerve cells relatively insensitive to radiation or sensitive? | show 🗑
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| show | are caused when a large dose of high- let radiation is received by a large area of the body
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| show | avoiding repeat exposure
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| X-rays may remove electrons form atoms in the body by a process called: | show 🗑
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| Ionization may cause: | show 🗑
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| Cell damage may be exhibited as | show 🗑
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| Damage to the cell being irradiated is called | show 🗑
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| show | genetic
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| Radiation that is contained in the environment is called | show 🗑
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| Background radiation is the source of what percent of human exposure? | show 🗑
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| The annual effective dose equivalent per person form natural background radiation is approximately | show 🗑
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| The greatest source of natural background radiation to humans is: | show 🗑
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| The smallest particle of an element that retains the characteristic of the element is a(n) | show 🗑
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| show | the number of protons plus the number of neutrons
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| show | photons
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| show | amplitude
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| show | frequency
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| The transformer that operates on the principle of self-induction is the | show 🗑
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| Electric timers used in x-ray equipment allow for exposure times as low as: | show 🗑
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| show | Automatic exposure control
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| When quality control test is performed to ensure that the penetrating ability of the x-ray beam is accurate, the result must be within this amount of the control panel setting: | show 🗑
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| What happens when a predetermined level of ionization is reached in the ionization chamber? | show 🗑
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dani326406