BMO State Board Test #1
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Attenuation | show 🗑
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| show | Photoelectric
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| show | Compton
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| The traditional unit of absorbed dose is the | show 🗑
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| show | Curie
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| Measurement of positive and negative parti-cles created when radiation ionizes atoms in the air helps define the | show 🗑
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| show | Varies for different types of radiation
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| The unit of the curie would be used in what imaging modality? | show 🗑
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| Graphs that demonstrate the relationship be-tween radiation received and the organism's response are called | show 🗑
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| Medical x-rays are an example of | show 🗑
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| Cataractogenesis does not occur at low levels of radiation exposure. Therefore it is best expressed by which of the following dose-response relationships? | show 🗑
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| show | Stochastic effects
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| show | 22 rem
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| show | 0.1 rem
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| show | 1/32 inch Pb equivalent
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| The intensity of the scattered beam is 1/1000 the intensity of the primary beam at a _____ angle 1 meter from the patient, | show 🗑
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| show | 20 R
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| The minimum source-to-skin distance for fixed fluoroscopes is | show 🗑
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| show | 50%
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| Cells that are oxygenated are more susceptible to radiation damage. This describes: | show 🗑
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| The blood count is depressed following a whole body dose equivalent of at least how many rads? | show 🗑
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| show | Free radicals
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| The master molecule that directs cell activities is: | show 🗑
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| show | Mitosis
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| The most common effect from exposure to ionizing radiation is: | show 🗑
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| show | At doses of radiation much higher thanthat used in radiography
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| Radiation dose up to _____ are considered low risk to the embryo-fetus. | show 🗑
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| show | ALARA
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| Which of the following is(are) relatively insen¬sitive to radiation? | show 🗑
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| show | Are caused when a large dose of high-LETradiation is received by a large area of thebody
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| show | Avoiding repeat exposures
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| X-rays may remove electrons from atoms in the body by a process called | show 🗑
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| show | Unstable atoms
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| show | Loss of function or abnormal function
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| show | Somatic
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| show | Genetic
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| show | Natural background
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| show | 82%
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| The annual effective dose per person from natural background radiation is approximately | show 🗑
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| The greatest source of natural background radiation to humans is | show 🗑
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| show | Atom
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| Atomic mass refers to | show 🗑
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| X-rays travel as bundles of energy called | show 🗑
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| The height of a sine wave is called | show 🗑
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| The number of x-ray waves passing a given point per unit time is called | show 🗑
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| The transformer that operates on the principle of self-induction is the | show 🗑
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| show | 1/1000 sec
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| show | automatic exposure control
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| What happens when a predentminded level of ionization is reached in the ionization chamber | show 🗑
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| show | falling load generator
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| An x-ray machine that makes maximum use of heat loading potential uses a | show 🗑
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| Devices in the x-ray circuit that operates on the principle of mutual induction are called | show 🗑
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| The high-voltage secction of the x-ray ciruit makes use of what type of transformer | show 🗑
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| The device in the x-ray circuit that changes AC to DC is the | show 🗑
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| What type of current is required for proper operation of the x-ray tube? | show 🗑
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| Modern rectifiers are made of | show 🗑
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| The result of thermionic emmission is a | show 🗑
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| The focusing cup is located at the | show 🗑
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| show | Characteristic
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| When a quality control test is performed to ensure that adjacent mA stations are accurate, the results must be within this amount of one another: | show 🗑
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| When a quality control test is performed to ensure that the same exposure factor produces consistent x-ray output, successive exposure must be within this amount of one another | show 🗑
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| show | 2% of SID
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| When a quality control test is performend to ensure that the penetrating ability of the x-ray beam is accurate, the result must be within this amount of the control panel setting | show 🗑
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| show | High- resolution monitor
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| A primary advantage of digital fluoroscopy is | show 🗑
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| show | Photostimulable phosphor
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| show | Laser beam
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| show | Analog-to-digital converter
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| An algorithm is | show 🗑
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| show | Voxel
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| A digital image is composed of rows and columns known as a | show 🗑
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| Image brightness in computed radiography may be adjusted by | show 🗑
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| The window level in computed radiography is the | show 🗑
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| Radiographic contrast in computed radiography may be adjusted by changing the | show 🗑
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| show | mAs
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| show | Manifest image
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| show | mAs
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| The rule or law that governs changing technique using kVp is the | show 🗑
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| show | Density is quadrupled
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| show | twice daily
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| Speed, contrast, and base plus fog should checked on every processor | show 🗑
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| show | Body,just below the shoulder
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| A malfuntion in which the developer temperature runs too low will cause | show 🗑
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| A situation in which fixer solution has entered the developer tank will cause | show 🗑
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| show | Developer
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| show | Developer
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| show | Recirculation
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| show | Upside down
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| show | Number of lead strips per inch or centimeter
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| show | active layer
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| A slower film-screen system will show | show 🗑
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| A faster Film-screen system will exhibit | show 🗑
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| show | Body
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| show | Enhance contrast
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| As kVp is decresed | show 🗑
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| show | Scale of contrast lengthens
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| Beam restriction has the folloing effect on contrast | show 🗑
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| show | Short wavelengths
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| show | Direct, although not proportional
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| Grids that have strips angled to coincide with divergence of the x-ray beam are called | show 🗑
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| The speed of the film-screen combination has what relationship with density | show 🗑
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| show | mAs
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| show | compensating
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| show | distortion
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| The speed of intensifying screens is expressed as a number that is called | show 🗑
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| show | 4
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| The wavelengh of light emitted by intensifying screen must be matched with wavelenghts to which the type of film used is most sensitive. This is called | show 🗑
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| show | Heigh of the strip to the space between them
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| The primary type of the grid used in diagnostic imaging is | show 🗑
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