ARRT Review: Radiation Protection
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| Bremsstrahlung radiation comprises what percentage of the x-ray beam? | 70-90%
Lange PREP pg. 227
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| What type of radiation is created by slowing down of electrons? | Bremsstrahlung
Lange PREP pg. 227
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| What type of radiation is created by the loss of electrons? | Characteristic
Lange PREP pg. 227
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| What is the relationship between wavelength and frequency? | Inverse
Lange PREP pg. 229
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| What is the dose response term for no safe dose? | Non-threshold
Lange PREP pg. 231
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| We are more concerned with early affects of ionizing radiation? T/F | False
Lange PREP pg. 233
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| What is the most sensitive cell in the body? | Lymphocyte
Lange PREP pg. 237
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| ALARA? | As Low As Reasonably Achievable
Lange PREP pg. 236
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| Four stages of Acute Radiation Syndrome? | Prodromal, Latent, Manifest and Recovery or Death
Lange PREP pg. 241
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| Ionizing radiation to a fetus the most dangerous late in pregnancy? T/F | False
Lange PREP pg. 242
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| When should children be shielded? | Whenever possible
Lange PREP pg. 242
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| It easier to shield female patients based off of the anatomic position of reproductive organs? T/F | False
Lange PREP pg. 242
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| Three types of beam restrictors? | Aperture diaphragm, cone/cylinder and collimator
Lange PREP pg. 251
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| The most important way to reduce patient dose? | Beam restriction
Lange PREP pg. 252
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| Beam restriction improves image detail by reducing? | Scatter
Lange PREP pg. 252
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| Low mAs and high kV factors will decrease patient dose? T/F | True
Lange PREP pg. 254
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| Three types of gonadal shields? | Flat contact, shadow and contour contact
Lange PREP pg. 258
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| Two types of AECs? | Ionization chamber and photo-timer
Lange PREP pg. 260
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| Fluoroscopy generally delivers a higher patient dose due to ____? | Decrease in source-to-skin distance
Lange PREP pg. 262
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| Three cardinal principles of radiation protection? | Time, distance and shielding
Lange PREP pg. 271
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| Secondary barriers protect from ______ radiation? | Scatter
Lange PREP pg. 272
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| If a technologist becomes pregnant she must quit or take a temporary leave of absence? T/F | False
Lange PREP pg. 275
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| Two areas a technologist is exposed to the most ionizing radiation? | Fluoroscopy and mobile radiography
Lange PREP pg. 275
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| Measures ionization in air? | Roentgen
Lange PREP pg. 281
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| Amount of energy deposited per unit mass? | Rad
Lange PREP pg. 282
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