Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
RADT 456-Protection
ARRT registry review-Radiation Protection
| Question | Answer |
|---|---|
| What is the annual occupational whole-body dose equivalent limit? | 50 msv (5 rem or 5000 mrem) |
| What is the occupational gestational dose-equivalent limit for embryo/fetus of a pregnant radiographer? | 5 msv |
| What type of expsure switch must a fluoroscopic and/or radiographic exposure switch have? | Dead man switch |
| True or False. Lymphocytes have the greatest radiosensitivy in the adult human. | True |
| Thyroid cancers, cataractogensis and genetic mutations are all consider to be ___ effects. | Somatic |
| What type of crystals does a thermoluminescent dosimetry (TLD) system use? | Lithium Fluoride |
| How is x-ray photon intensity affected when the SID is doubled? | The intensity decreases by four times |
| What type of dose response curve states that there is no dose below which radiation is completely safe? | No-threshold linear response curve |
| What is another name for immature cells? | Undifferientiated or stem cells |
| What happens to patient does when fluoroscopic FOV decreases? | Increases |
| What is the unit for Roentgen? | Exposure |
| True or False. A high-speed intensifying screen uses a lower mAs which limits patient dose. | True |
| It is generally preferred that the skull be examined in a ___ projection. | PA |
| What does the term hypoxic mean and/or refer to? | Refers to tissue with little oxygen |
| When tissue is anoxic it is ____ sensitive. | Least |
| The NRCP regulations state that, leakage radiation from the x-ray tube must not exceed how many mR/h? | 100 mR/h |
| Use factor, workload, and occupancy factor are all used in determining | Radiation barrier thickness and protective barrier thickness |
| What type of radiation personnel monitor has the capability of providing immediate readings? | Ionization chamber |
| True or False. According to the law of Bergonie and Tibondeau, cells are more sensitive if they are highly mitotic or immature. | True |
| What does RBE stand for? | Degree of response or amount of biologic change one can expect of the irradiated material |
| What type of relationship do RBE and LET share? | Direct. As LET increases, RBE increases |
| What is the most radiosensitive portion of the GI tract? | Small bowel because of the villi |
| Equipment operating above 70 kVp must have a total filtration of? | 2.5 mm |
| What are filters generally comprised of when used in radiology? | aluminum |
| What is the purpose of filters in a film badge? | They measure radiation quality |
| Control booths, lead aprons, gloves, and the wall of the x-ray room about 7 ft are all examples of ___ barriers. | Secondary |
| Basements and smoking cigarettes are identified as sources of ___ exposure. | Radon |
| True or False. Radiology departments are known as a source of radon gas exposure. | False |
| What two types of radiation are considered electromagnetic? | X-ray and Gamma |
| What two types of radiation are considered particulate radiations? | Alpha and Beta |
Created by:
kjschapker
Popular Radiology sets