Radiation Safety Exam Bundle Graded A+

Which imaging system provides the least amount of radiation exposure to the patient? - Answer-indirect digital imaging What form of energy can penetrate matter? - Answer-electromagnetic A carious lesion is suspected on the distal of tooth #19. Which radiograph is preferred for confirmed diagno...

Which color Rinn XCP is used for the bitewing placement? - Answer-Red In regards to patient protection >> - Answer-Duplicate radiographs from another dentist may be used for pt. treatment planning Positive clinical findings during examination classify pts as symptomatic New patients s...

Birth of health Physics - Answer-Manhattan District which conducted the Manhattan project to develop the atom bomb was top secret. Did not want to call it radiation protection because they did it to keep it a secret, called it health physics since it dealt with the health safety problems of radioact...

ALARA - Answer-As Low As Reasonable Achievable: To keep radiation does at lowest Possible level BERT - Answer-Method that compares the amount of radiation received with natural background radiation received over a given period TRACE - Answer-Tools for Radiation Awareness and Community Educatio...

Federal law on radiation protection requires which two of the following? - Answer-signage for radiation areas, maintaining personnel dose records What is the dose limit for the lens of the eye for occupational workers in radiation per The National Council on Radiation Protection and Measurements ...

Use of lead apron in keeping with what concept of patient protection - Answer-ALARA (As low as reasonably achievable) This is required on all x-ray equipment to remove long wavelength x-rays - Answer-Aluminum Filter Maximum Permissible Dose - Answer-Dose of radiation the body can endure with l...

What does PID refer to? - Answer-Position Indicator Device- cylinder or cone part of xray machine aligned with the film during exposure Density refers to - Answer-Overall blackness of the film Periapical image allows the following images to be visualized - Answer-Crown, Root, supporting tissue...

The inventor of X-rays in 1895 was - Answer-Roentgen The central beam that comes from the X-ray tube head is ——- radiation - Answer-Primary The radiation formed when the primary X-rays strike the patient is ——- radiation - Answer-Secondary The radiation that is deflected from its pa...

Dental x-rays - Answer-Any exposure to radiation no matter how small has the potential to cause a biological changes Types of radiation: primary - Answer-The x-rays that come from the target of the x-ray tube Types of radiation: secondary - Answer-Radiation that is created when the primary int...

The inventor of X-rays in 1895 was - Answer-Roentgen The central beam that comes from the X-ray tube head is ——- radiation - Answer-Primary The radiation formed when the primary X-rays strike the patient is ——- radiation - Answer-Secondary The radiation that is deflected from its pa...

Which of the following agencies is responsible for enforcing radiation safety standards? A. NRC B. NCRP C. ICRP D. UNSCEAR - Answer-A. What is the cumulative effective dose to the whole body of an occupationally exposed person who is 27 years old? A. 2700 mSv B. 270 Sv C. 270 mSv D. 2.7 S...

forms of electromagnetic radiation? - Answer-1. Microwaves 2. Visible light 3. X-rays Some consequences of ionization in human cells include: 1. Creation of unstable atoms 2. Production of free electrons 3. Creation of reactive free radicals capable of producing substances poisonous to the cell -...

Which of the following is a form of radiation that is capable of creating electrically charged particles by removing orbital electrons from the atom of normal matter through which it passes? Ionizing radiation Nonionizing radiation Subatomic radiation Ultrasonic radiation - Answer-Ionizi...

1. Biologic material irradiated under hypoxic conditions is (A) more sensitive than when irradiated under oxygenated conditions (B) less sensitive than when irradiated under anoxic conditions (C) less sensitive than when irradiated under oxygenated conditions (D) unaffected by the pr...

What is Ionizing radiation? - Answer-Radiation that produces positively and negatively charged particles (ions) What is radiation protection? - Answer-Effective measures employed by radiation workers to safeguard patients, personnel, and the general public from unnecessary exposure to ionizing ra...

The process by which an unstable nucleus releases energy to achieve greater stability is called - Answer-Nuclear decay What charge does a neutron have? - Answer-Neutral Ionization is a neutral atom acquiring charge by gaining or losing - Answer-Electrons Which loses energy each time ionizat...

% of radiation exposure from background radiation Radon- __% space__% internal readionuclides 9% Terrestrial 7% - Answer-73/11 background radiation= ___mSv/yr - Answer-3.1 Effective Dose to average U.S. citizen from background radiations / year - ___ microsieverts (μSv) or __ mSv per year...

Any radiation that directly or indirectly displaces electrons from the original shell of atoms is call ____________ radiation. - Answer-Ionizing What is the basic differences between x-rays and gamma rays? - Answer-The Origin The speed at which X and gamma rays travel is: - Answer-The speed of...

ICRP - Answer-The International Commission on Radiologic Protection NCRP - Answer-The National Council on Radiation Protection and Measurements UNSCEAR - Answer-The United Nations Scientific Committee on the Effects of Atomic Radiation NAS/NRC-BEIR - Answer-The National Academy of Sciences/...

The process of selective removal of lower energy photons, that add nothing to the quality of the image, from the x-ray beam. - Answer-Filtration This form of filtration is built into the design of the x-ray tube. - Answer-Inherent This form of filtration is placed above the collimator shutters...

different regulatory agencies - Answer-nuclear regulatory commission, agreement state, department of transportation, food and drug administration, environmental protection agency, department of homeland security nuclear regulatory commission (NRC) - Answer-agency of the US government that oversee...

what 4 things must you check when patient arrives? what shows their identity? - Answer-wrist band, DOB, SSN, and/or middle name do all studies have to have written orders from MD? - Answer-YES what is done to ensure the proper radio phamaceutical is selected? - Answer-color coding on the vial,...

Radioactivity - Answer-Spontaneous process characteristic of atoms with unstable nuclei in which the nucleus releases energy either as a particle with kinetic energy or as electromagnetic energy Parent Isotope - Answer-Original isotope prior to radioactive decay Daughter Isotope - Answer-Isoto...

which of the following is a pure substance that cannot be broken down into simpler substances by chemical means? - Answer-Element Which of the following has no charge? - Answer-Gamma Ray The smallest unit of a compound that still retains the unique physical and chemical characteristics of the ...

X-ray production - Answer-*e- move at high speeds from cathode to anode --when e- strike the anode, x-rays are created via Bremsstrahlung and characteristic interactions **photon beams are polyenergetic Sources of x-radiation for operators/other staff during x-radiation production - Answer-1.Sc...

What is radiation? - Answer-the transfer of energy as electromagnetic waves What is ionizing radiation? - Answer-any type of radiation that is capable of removing an orbital electron from the atom with which it interacts Types of ionizing radiation - Answer-x-rays and gamma rays What is the...

The technologist chooses to use a grid for an exam. What effect will this have on the patient exposure while ensuring proper image quality? - Answer-increase patient exposure Which of the following projections would result in a young female patient receiving a significantly lower dose to her brea...

What is the mechanical support of the tube head means? - Answer-The mechanical support of the tube head can be adjusted to remain stable during exposure and shall not be hand held unless manufacturer designed system to be hand held while operating What is the safety distance between operator and ...

Dental radiographs are NOT used for - Answer-detection of soft tissue trauma Which radiation produces diagnostically useful radiographs? - Answer-primary If the tubehead drifts, which component of the x-ray machine needs attention? - Answer-extension arm Which term describes light or white ...

Chronic exposure of individuals to low levels of radiation can have which of the following health effects? A. Premature aging B. Higher incidence of cancer C. Damage to the lens of the eye D. All of the above - Answer-D. All of the above Pregnant women should avoid exposure to radiation beca...

ALARA - Answer-As Low As Reasonably Achievable DOT - Answer-a. Department of transportation governs the use of the nations transportation systems. Included in these regulations are rules defining radioactive materials and prescribing authorized modes for their transport. Dose Equivalent - Answ...

12.5 mrem - Answer-A person is standing in an area where they are exposed to 25 mrem during a 40 second shot with a tube setting of 10mA. If the milliamperage were changed to 5mA with the same exposure time, what would the person's new exposure be? you must survey the tube assembly 360 degrees...

obj: What steps are involved in preparing hazardous materials for shipping. -Proper Shipping Names and Radioactive Material Types - Answer-1. ID- Gather evidence 2. Classify- Determine hazard class & shipping name 3.Containment- Select the packaging 4. Communication- transmitting info on the ...

This criteria should be used when determined what patients need radiographs - Answer-evidence based selection criteria Which of the following cells is most radio resistant: epithelial cells, nerve cells, immature reproductive cells, red blood cells - Answer-nerve cells The ________ the PID th...

The amount of energy deposited in a unit mass in human tissue or other media is the definition of: A. Absorbed dose B. Biological dose C. Effective dose D. Dose Equivalent - Answer-A. Absorbed dose After Tc99m is removed from a generator, it takes approximately ____ hours for the Tc99m acti...

X rays - Answer-produce a photographic image of dental fil which is made visible through processing skin, teeth, and bone - Answer-what can an X ray penetrate through? radiograph - Answer-a photographic record that can be seen on film that is produced by passing x rays through an object or a b...

A person is standing in an area where they are exposed to 25 mrem during a 40 second shot with a tube setting of 10 mA. If the milliamperage were changed to 5 mA with the same exposure time, what would the person's new exposure be? - Answer-12.5 rem At the completion of an X-ray exposure and t...

Natural background radiation represents what percentage of humans' radiation exposure? A. 21% B. 50% C. 82% D. 5% - Answer-B The greatest source of natural background radiation exposure is: A. cosmic rays B. radioactive materials C. the body itself D. radon gas - Answer-D Cosmic...

What is the Whole Body (WB) occupational dose limits for worker in NC? - Answer-5,000 mrem/year By regulation, the institutional radiation protection program shall monitor individuals' exposure/dose if they are likely to receive ____% of the limit, which equals ___ mRem. - Answer-By regulation...

what is the use of the lead apron? - Answer-ensures that the reproductive areas are covered and protected from radiation exposure what is the use of thyroid collar? - Answer-to protect the thyroid gland from the effects of radiation exposure what are the 4 patient protection techniques dental ...

What image receptor, semi critical item should be sterilized before we use - Answer-Positioning device The purpose of the aluminum disc in the x-ray tube head is too - Answer-Filter out long wave X-rays from the primary beam Which of the following affects the quality of x-rays being emitted fr...

During comption interactions, the incident x-ray photon interacts with what portion of an atom? - Answer-outer shell electron Photons produced outside of the actual focal spot are known as: - Answer-off-focus radiation Per the NCRP, personnel protective lead aprons used during fluoroscopy shou...

Wilhelm Rontgen - Answer-Who discovered the X-ray? Decay damage, change in bone patterns, impacted teeth, cysts, and tumors - Answer-What can X-rays identify? Ionizing radiation - Answer-X rays are a form of what? Ionizing Radiation - Answer-We can't see or feel this energy but as it mov...

Who discovered X-Rays? - Answer-Wilhelm Roentgen When did Wilhelm Roentgen discover X-Rays? - Answer-November 8th 1895 Did Wilhelm Roentgen discover X-Rays on purpose? - Answer-No, it was by accident What was the first X-Ray tube known as? - Answer-Known as a Crooke's Tube or Cathode Ray...