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fluoro-regulaory req
Regulatory Requirements
| Question | Answer |
|---|---|
| Which item is NOT required to be posted in areas where x-ray producing machines are utilized? | each physician's license for the healing arts |
| What kind of radiation barrier (if any) is required for all walls, floors and ceilings exposed to the useful (primary) beam? | barriers that are 1.5 mm of Lead (PB) equivalent |
| What equipment is Not required on mobile fluoroscopic equipment? | automatic brightness control circuit |
| The California Radiation Control Regulations require that protective aprons used during fluoroscopy shall be at least? | 0.25 mm of lead (Pb) equivalent |
| The California Radiation Control Regulations require that tube potential (kVp) and current (mA) be monitored and logged? | Weekly |
| For mobile C-arm fluoroscopic equipment inherent provisions must ensure a minimum source-to-skin distance of? | 12 in |
| The California Radiation Control Regulations require the minimum lead equivalence of gonadal shielding be? | 0.50 mm of lead (Pb) equivalen |
| The California Radiation Control Regulations require that the total filtration permanently fixed in the useful beam for fluoroscopy may not be less than how many millimeter (mm) of aluminum equivalent? | 2.5 mm of aluminum (Al) equivalent |
| The most conservative type of dose effect curve and also the curve upon which radiation protection guides and regulatory requirements are based is the? | Linear-nonthreshold dose response curve |
| The California Radiation Control Regulations specifically limit the occupational whole-body dose equivalent for a person over 18 years of age to? | 1,250 mrems per calender quarte |
| Which individuals may perform fluoro if they posses a valid andup to date license issued by the state? A license physician of the healing-arts A certified radiologic technologist A limited permit radiologic technologist A student of radiologic techn | 1 and 2 only |
| The(NCRP) state that the risk to the embryo/fetus is considered to be negligible at 5 rads or less when compared to the other risks of prenancy. The risk of malformations is significantly increased above control levels at doses above? | 15 rads |
| If any occupational worker received and exposure of 5 Roentgens to the skin of the whole body; the state must be notified: | no notification is necessary |
| If an occupational worker receiveds an exposure of 2 rems in a calendar quarter the state must be notified: | within 30 days |
| On mobile fluoroscopic machaines, the target-to-panel and target-to-skin distance shall not be less than? | 12 inches |
| For fluoroscopic equipment with automatic exposure control, the x-ray tube current and potential shall be monitored at least: | once a week |
| In a fixed Fluoroscopic room, the minimum height of the primary barrier is? | 6.8 feet (80 inches) |
| When automatic exposure rate control is used, the useful beam exposure rate shall be measured with a phantom equivalent to _________ intercepting the useful beam. | 9 in of water |
| Fluoroscopic equipment with an ABC control shall not be operable at any combination of tube potential and current in excess of? | 10 R/min |
| The bucky slot cover should have at least ________ equivalent material | 0.25 mm pb equ |
| Gonadal shields should be at least: | .50 mm pb= |
| The table-top equivalent thickness must not exceed: | 1mm Al |
| Who administers the fluoroscopy regulations? | ers the fluoroscopy regulations? California Department of Health Services, RHB |
| X-ray machines must be registered with the RHB (Radiologic Health Branch) after acquistion, transfer or disposal within? | 30 days |
| Leakage radiation from the x-ray tube housing at one meter away shall be no more than: | Leakage from the x-ray tube housing, one meter away, shall measure no more than 100 mrads/hr |
| Which item (listed below) is used to attenuate scattered or leakage radiation? | Secondary barriers - Barriers that will be exposed to radiation (scatter or leakage), but not the primary beam. |
| Secondary barriers - Barriers that will be exposed to radiation (scatter or leakage), but not the primary beam. | filter |
| Which item is used to attenuate the useful beam to the required degree? | primary barrier |
| The x-radiation that is considered the useful beam, passes through which of the following items? Aperture Grid X-ray tube window Collimator | 1, 3, 4 |
| he energy imparted by ionizing radiation per unit mass of irradiated material is referred to as? | radiation absorbed dose (rad) |
| The product of the absorbed dose in tissue and the quality factor is related to? | The product of the absorbed dose in tissue, and the quality factor is related to rem, dose equivalent, and seivert. |
| Eye exposure dose equivalency is: An external exposure of the lens of the eye Minimum dose for cataract formation Taken at a tissue depth of 0.3 cm | Eye dose equivalent is an external exposure of the lens of the eye and taken at a tissue depth of 0.3cm. |
| When is an individual considered a "member of the public" during any period which the individual receives an occupational dose? | never |
| A health effect for which a threshold is believed to exist, the severity of the effect varies with the dose; is referred to as: Deterministic effect Stochastic effect Non-stochastic effect | non stochastic effect deterministic |
| A example(s) of stochastic effect is/are: Cataracts Cancer Hereditary effects in offspring | Examples of stochastic effects are cancer inducing, and hereditary effects in offspring |
| How often must an x-ray supervisor and operator review the radiation protection program's content and implementation? | An X-ray supervisor and operator must review the radiation protection program’s content and implementation annually. |
| The annual dose limits for individual members of the public is? | 0.1 rem |
| The exposure must be ________ when the useful beam barrier/useful beam congruence (image intensifier) is removed. | automatically terminated |
| X-ray units that are strictly fluoroscopic in nature require a _________. | secondary barrier |
| In order to accurately monitor the exposure factors during fluoroscopy, the control panel must contain which of the following devices? kVp indicatior automatic timer mA indicator | In order to accurately monitor the exposure factors during fluoroscopy, the control panel must contain a kVp indicator, and a mA indicator. |
| The term used to define any area where an individual could receive a dose equivalent in excess of 0.005 rem (0.05 mSv) in 1 hour at 30 cm from the radiation source is referred to as a: | radiation area |
| The term used to define any area where an individual could receive a dose equivalent in excess of 0.1 rem (1.0 mSv) in 1 hour at 30 cm from the radiation source is referred to as a: | high radiation area |
| Exposure levels of x-radiation dose of the embryo/fetus shall be no greater than _______ in any month, (excluding medical exposure). | 0.05 rem (0.5 mSv) |
| The SSD (source-to-skin distance) of mobile fluoroscopy equipment must not be less than: | 12 inches |
| Which of the following are true? use of conventional fluoroscopic screens is never acceptable Mobile fluoroscopic equipment must always be equipped with an image intensifier Mobile fluoroscopic equipment must not always be equipped with an II | Mobile fluoroscopic equipment must always be equipped with an image intensifier, and use of conventional fluoroscopic screens is never acceptable. |
| In reference to a mobile fluoroscopic unit, if the collimation diaphragm is not in place: | it will not function |
| can be simulated as patient and are considered approved phantoms for fluoroscopic QA testing purposes? 7.9 in of water & 9 in Lucite 9 inches of water & 7.9 inches of Lucite 9 inches of water and 7 inches of Lucite 6 inches of water and 9 inches of Lu | 9 inches of water & 7.9 inches of Lucite |
| Protective aprons must be worn by everyone except the patient, if one is likely to receive ___________ or more. | 5 mrads/hr or more. |
| An observation window must provide radiation attenuation _________ to that required in the surrounding barrier. | equal |
| The operator station or shield must intercept the useful beam and radiation which has been: | scattered at least twice |
| The operator shall be able to _________ with the patient without leaving the shielded position at the control panel. observe communicate touch | observe and communicate |
| The table-top or upright film holder must not exceed ___________ equivalent at 100 kVp. | 1mm Al equivalent |
| The exposure switch on any mobile x-ray machine must be of a dead-man type and must allow the technologist to stand at least ________ away from the useful beam. | 6 feet |
| Standardized QC tests are designed to detect abnormalities: | QC test detect abnormalities before significant deterioration of image quality occurs. |
| The major reason for a QA program is: | optamize diagnosis |
| The International Commission on Radiation Units & Measurements (ICRU) recommends the use of a standarized method of evaluating the light emission of an image intensifier called? | conversion factor |
Created by:
amanda.clark