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RADT 465 Rad. Prot.
RADT 465 Radiation Protection
| Question | Answer |
|---|---|
| Bremsstrahlung radiation comprises ___%-___% of the x-ray beam. | 70, 90 (Lange PREP pg. 227) |
| What type of radiation is formed by the slowing down or redirection of an electron? | Bremsstrahlung (Lange PREP pg. 227) |
| What type of radiation is formed due to the loss of an electron? | Characteristic (Lange PREP pg. 227) |
| What is the relationship between wavelength and frequency? | inverse (Lange PREP pg. 229) |
| What is the dose response term for no safe dose, even one photon can cause a response? | nonthreshold (Lange PREP pg. 231) |
| Carcinogenesis, Cataractogenesis, Embryologic effect and lifespan are all ____ effects of radiation exposure. | (Lange PREP pg. 231) |
| Occupationally exposed workers are morse concerned with (late/early) effects of ionizing radiation. | late (Lange PREP pg. 233) |
| What is the most sensitive cell in the body? | lymphocyte (Lange PREP pg. 237) |
| What does ALARA stand for? | As Low As Reasonably Achievable (Lange PREP pg. 236) |
| What are the four stages of Acute Radiation Syndrome? | Prodromal, Latent, Manifest and Recovery or Death (Lange PREP pg. 241) |
| When is the delivery of ionizing radiation to a fetus the most dangerous? | early on (Lange PREP pg. 242) |
| When should children be shielded? | whenever possible (Lange PREP pg. 242) |
| Is it easier on a male or female patient to practice gonadal shielding based off of the anatomic make up of reproductive organs? | males (Lange PREP pg. 242) |
| What are three types of beam restrictors? | aperture diaphragm, cone/cylinder and collimator (Lange PREP pg. 251) |
| The most important way to reduce patient dose is through ____ _______. | beam restriction (Lange PREP pg. 252) |
| Beam restriction improves image detail by reducing _____. | scatter (Lange PREP pg. 252) |
| Low mAs and high kV factors will increase or decrease patient dose? | decrease (Lange PREP pg. 254) |
| _______ shielding should be used when the gonads lie in or within 5 cm of the collimated beam, the patient has reproductive potential and it doesn't interfere with diagnostic objectives. | gonadal (Lange PREP pg. 258) |
| What are the three types of gonadal shields? | flat contact, shadow and contour contact (Lange PREP pg. 258) |
| What are the two types of AECs? | ionization chamber and phototimer (Lange PREP pg. 260) |
| Fluoroscopy generally delivers a higher patient dose due to the decreased ____. | source-to-skin distance (SSD) (Lange PREP pg. 262) |
| What are the three cardinal principles of radiation protection? | time, distance and shielding (Lange PREP pg. 271) |
| Primary barriers protect from the useful beam and secondary barriers protect form scatter and ______ radiation. | leakage (Lange PREP pg. 272) |
| True/False: If a technologist becomes pregnant she must quit or take a temporary leave of absence. | False, a pregnant technologist must inform their employer as soon as possible and wear a secondary radiation badge to monitor fetal exposure (Lange PREP pg. 275) |
| Where are the two areas a technologist is exposed to the most ionizing radiation? | fluoroscopy and mobile radiography (Lange PREP pg. 275) |
Created by:
sadugan
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