Term Which is the most likely result if an exposure is made without the use of a focusing cup? | | Definition Increased off focus radiation | |
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Term which substance is added to the X-ray tube housing to increase heat dissipation | | Definition |
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Term Which term refers to the removal of an electron from the orbital shell of an atom | | Definition |
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Term Which is the primary advantage of a rotating anode | | Definition Less heat is generated at the target | |
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Term Which effect does the focusing cup have on the stream of electrons traveling toward the anode? | | Definition Forces the electrons to stay close together | |
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Term How is the process of thermionic emission described | | Definition Electrons are released when the filament is heated | |
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Term Which type of interaction results in the production of bremsstrahlung x-rays | | Definition A projectile electron slows down near the nucleus of the target atom | |
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Term Which term is used to describe the intensity of the X-ray beam | | Definition |
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Term Which is the primary controlling factor for X-ray beam quality | | Definition |
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Term Which type of radiation Is produced when an outer shell electron fills an inner shell vacancy | | Definition |
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Term which device provides the required amount of voltage for x ray production | | Definition |
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Term which effect does a step up transformer have on voltage and current | | Definition voltage is increased and current is decreased | |
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Term which device is located in the primary section of a general X-ray circuit | | Definition |
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Term at which location is the ionization chamber located in an AEC | | Definition Between the grid and the IR | |
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Term Which device in the tray circuit changes AC to DC | | Definition |
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Term In cassettes based CR systems, the photostimulable phosphor plate is made of which material | | Definition |
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Term The collimator light must be aligned to the radiation field to within what percent of the SID | | Definition |
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Term The kip displayed on the operator console should be accurate to within what percent of the measured kip | | Definition |
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Term The center of the x ray beam must be aligned to the center of the Bucky tray to within what percent of the the SID | | Definition |
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Term with all other factors remaining the same, a decrease in kip will cause an increase in which X-ray beam characteristic | | Definition |
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Term what is an acceptable man readout during a linearity test if 50 was at 70 kip is used | | Definition 46 mas mas linearity must be within 10% either way of the selected station | |
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Term which factor will increase x ray beam quantity at the IR without increasing heat units produced by the tube | | Definition |
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Term which set of exposure factors is most likely to provide clear visualization of the upper cervical spine through the mandible when performing and AP wagging jaw (Ottonello method) projection | | Definition 75kvp 25 mas, 2.0 seconds long time | |
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Term which ma station will result in a man value of 44 if the exposure time is .11 seconds | | Definition |
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Term which x ray tube orientation represents the correct application of the anode heel effect | | Definition the anode ends positioned toward the head for an AP t spine projection | |
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Term a radiograph of the L5-S1 joint space was acquired using a conventional film screen system with the field size collimated to a 10x12 IR. A repeat exposure is then taken with the same exposure factors, but with an 8x10 field size. How will the smaller field size affect image quality | | Definition |
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Term a radiographic image was acquired at 80 kVp with AEC using a conventional film screen system. If a repeat exposure is taken at 90 kvp what change can be expected | | Definition exposure time will decrease | |
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Term a lateral lumbar spine image was obtained with a field size of 11x14 inches at 95 kVp and AEC with the center detector selected. The resulting image demonstrates excessive quantum noise. which is the most likely cause for this appearance | | Definition the patient was not accurately centered | |
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Term which procedure is most effective for reducing localized image blurring caused by involuntary patient motion | | Definition |
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Term which effect will a low signal to noise ration have on the appearance of a digital radiographic image | | Definition decreased contrast resolution | |
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Term which effect does switching to the small focal spot size have on the manifest image | | Definition image unsharpness decreases | |
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Term a radiograph of optimal density is produced at 15 mAs and an SID of 40 inches. Which was value is required to produce the same radiographic density if this exam is repeated at an SID Of 48 inches | | Definition |
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Term a fixed kVp variable ma chart recommends exposure factors of 70 kVp and 32 mAs for an AP abdomen projection on an average sized patient. based on this chart, which fixed kVp technique is most appropriate for an AP projection of a double contrast UGI image | | Definition |
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Term a film screen image of the abdomen demonstrates appropriate density and scale of contrast, but motion blur is present due to peristalsis. if the original image was obtained with a 200 ma station and an exposure time of .35 seconds, which set of technical factors will produce a comparable exposure while minimizing motion artifact | | Definition |
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Term which is the best way to avoid excessive quantum noise when using cassette based digital systems | | Definition increase the amount of exposure to the IR | |
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Term all other factors remaining the same, how will increasing the SID from 40 inches to 60 inches affect the appearance of a radiographic image | | Definition |
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Term which was value should be selected for a patient measuring 30 cm if 22 was is optimal for a patient measuring 25 cm | | Definition 44 mas 4 to 5 cm requires was be increased by a factor of 2 | |
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Term why is it important for the radiographer to observe the man readout at the end of each exposure when using AEC | | Definition this value may be used as a basis for calculating manual techniques | |
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Term a PA chest radiograph of an adult patient is acquired with a conventional film screen system using AEC. Both lung fields are demonstrated in their entirety, but the lung markings are not visible due to excessive exposure, which is the most likely cause of this appearance | | Definition incorrect AEC chamber selection | |
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Term which advantage is gained by increasing the standard SID from 40 inches to 48 inches | | Definition increased image resolution | |
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Term which set of technical factors is recommended when obtaining a conventional image of the sternum by blurring the overlying lung markings on a PA oblique projection | | Definition 65 kVp and 10 ma at 3 seconds shallow breathing, long time | |
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Term how are the AEC devices for mammography different from these used with diagnostic radiography | | Definition greater accuracy is required | |
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Term which radiopaque marker is image appropriate after micturition has taken place | | Definition |
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Term which environment is most appropriate for film storage | | Definition |
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Term which scenario will lead to overexposure on images when using automatic film processors | | Definition elevated developer temperature | |
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Term when using digital imaging, which has the greatest influence on contrast | | Definition |
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Term which factors affect spatial resolution in digital imaging | | Definition smaller pixels greater number of pixels | |
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Term which acronym describes a network of computers that manages digital images | | Definition |
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Term in which part of the automatic processor are exposed crystals reduced to black metallic silver | | Definition |
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Term how does a wide window width affect an image | | Definition |
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Term which post processing techniques may be used with digital imaging | | Definition electronic maskingfiltering smoothing | |
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Term which post processing action is always acceptable | | Definition annotating with an upright marker to show the patient was in an erect position | |
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Term how will raising the window level affect the digital image | | Definition |
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Term which term refers to a graphical representation of pixel values | | Definition |
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Term which statement describes a properly positioned lateral foot image | | Definition superimposition of the first and fifth metatarsal heads | |
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Term which statement describes the presence of patient rotation on a lateral cervical spine | | Definition anterior to posterior displacement of zygapophyseal joints | |
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Term with all other factors remaining the same, which SID results in the greatest exposure to the IR | | Definition |
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Term which image, when performed according to normal standards, will demonstrate the greatest magnification of the anatomy of interest | | Definition |
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Term which factor will have the greatest impact on decreasing recorded detail or spatial resolution | | Definition |
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Term which scenario causes foreshortening on the anatomy of the image | | Definition the humerus in contact with the IR, the forearm lifted off the IR and the CR directed perpendicular to the long axis of the humerus | |
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Term which combination results in an image with the greatest recorded detail | | Definition 2 inch OID 72 SID and 0.6 mm focal spot | |
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Term Which scenario may cause film to be fogged | | Definition using film past its expiration date | |
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Term which was setting is most likely to produce quantum mottle | | Definition |
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Term how does aliasing appear radiographically when using CR | | Definition two superimposed images, slightly out of alignment | |
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Term consider these different abdomen images of the same patient. what most likely caused the difference in these images | | Definition image A was produced at a shorter SID magnification | |
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Term this mobile cheese image lacks which required image element | | Definition |
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Term Which practices are considered violations of the HIPPA | | Definition Looking up test results of a family member Accessing medical images of a coworker | |
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Term according to the ARRT standard of ethics, a radiographer may be subject to sanctions including revocation of certification for which actions | | Definition Performing duties while under the influence of illegal drugs or alcoholPerforming a medical procedure without appropriate training or supervision Failing to report a medical error because the patient was unharmed | |
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Term when a radiographer asks a patient to lie down on the imaging table and the patient complies, which type of consent has the patient given | | Definition |
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Term Which example of nonverbal communication is most effective for helping a patient overcome anxiety and apprehension prior to an exam | | Definition Maintain direct but appropriate eye contact with the patient | |
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Term which guideline represents the best approach for examining patients who are mentally impaired | | Definition Assess each patient's ability to follow instructions prior to the exam | |
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Term which is the most appropriate response if a patient asks about the risks of radiation exposure from a CT exam | | Definition A CT results in a much higher dose than x-ray, but your physician believes the benefits outweigh the risk | |
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Term which is the most appropriate response to a patient who asks what the term peritonitis means | | Definition peritonitis is an inflammation of the abdomen | |
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Term which is the best strategy for communicating health care information to a patient who is completely deaf | | Definition call for an interpreter certified in sign language | |
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Term which guideline is most effective for reducing the number of nosocomial infections | | Definition position urinary catheter bags below the level of the patient's bladder | |
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Term washing hands with soap and water disrupts the chain of infection by which process | | Definition decreasing the number of pathogens present | |
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Term which general guideline is the most appropriate for determining when to use standard precautions | | Definition when performing exams on all patients | |
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Term which condition requires a patient to be placed in a. negative pressure room, and healthcare workers to wear respiratory protection when entering | | Definition |
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Term which item must be discarded in a biohazard bag | | Definition bed sheet saturated with blood | |
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Term when transferring a patient with hemiparesis from a wheelchair to the X-ray table, in which position should the wheelchair be placed | | Definition parallel to the x ray table, with the patient's strong side closest to the table | |
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Term when obtaining a blood pressure reading, systolic and diastolic values are determined by monitoring which pulse point | | Definition |
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Term which is the best way to control severe bleeding from a deep laceration of the upper arm | | Definition apply direct pressure to the wound and raise the patient's arm above the level of the heart | |
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Term which value represents a normal respiratory rate for a pediatric patient | | Definition |
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Term According to the American heart association guidelines, which is the correct rate of chest compressions when administering CPR to a 6 month old patient | | Definition |
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Term During a routine radiographic exam, a patient complains of dizziness and appears anxious and diaphoretic. While checking the patient's vital signs, the radiographer notes a rapid heart rate, shaky hands, and clammy skin. Which is the most likely explanation for this presentation | | Definition |
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Term which guideline is recommended for safely lifting a patient from a seated position | | Definition stand with feet apart to establish a wide base of support | |
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Term which is considered a major contraindication for IVU | | Definition hyersensitivity to contrast media | |
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Term which describes the proper technique for needle insertion during venipuncture | | Definition insert needle into vein a a 15 degree angle with bevel facing upward | |
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Term what are the six rights of drug administration that radiographers should follow | | Definition patient, drug, amount, route, documentation, and time | |
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Term a trauma patient arrives to the emergency department unconscious with tachycardia and hypotension. The patient has lost a significant volume of blood. The patient is experiencing which condition | | Definition |
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Term a patient is slumped over in his wheelchair and is non responsive. After easing the patient to the floor, the radiographer finds no carotid pulse. This patient is experiencing which condition | | Definition |
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Term during the medical history assessment prior to an UGI, the patient reports he is taking the ACE inhibitor, Vasotec. This suggests that the patient is being treated for which condition | | Definition |
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Term identify the proper medical record documentation administration | | Definition 5 mpg/min, Epinephrine, IV, 11/12/2007, 0940 | |
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Term What does "not for parenteral use" warning mean | | Definition it must be administered orally or rectally | |
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Term place the cursor on the contrast media that should be administered for an IVU | | Definition |
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Term what is the minimum recommended filtration for general diagnostic xrays | | Definition |
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Term in which position should the patient be placed in order to demonstrate the right intervertebral foramina of the cervical spine while minimizing radiation dose to the thyroid gland | | Definition |
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Term what is the advantage of using a high kVp, low mAs technique with DR systems | | Definition patient exposure decreases | |
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Term which fluoroscopic mode results in the lowest patient dose | | Definition digital pulsed progressive | |
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Term a six year old pediatric patient arrives in the radiology suite for a radiograph of the abdomen. Which set of technical factors proves the best radiation protection | | Definition |
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Term what is the maximum allowable tabletop intensity in high level control flouro procedures | | Definition |
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Term A radiographer performs an abdomen exam with a mobile DR system. IN order to reduce the likelihood of a repeat exposure, he decides to increase the technical factors slightly more than necessary. Which term refers to this undesirable practice | | Definition |
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Term which is the required amount of inherent filtration for general purpose x ray tubes | | Definition |
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Term According to the FDA, what is the maximum air karma rate for fixed flour units | | Definition |
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Term which types of material are suitable as secondary shielding in the radiology suite | | Definition gypsum boardlead acrylic concrete | |
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Term a radiographer stands six feet from the X-ray source when performing a portable chest exam and receives an exposure of 2 mGy. If the radiographer performs a repeat exam using the same technical factors standing 3 feet from the source, how much exposure will be received | | Definition |
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Term which factors will impact the radiation barrier calculations for an x ray room | | Definition people in adjoining roomshow often the room is used types of exams performed in the room | |
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Term which procedures should imaging personnel perform in order to reduce exposure time during floor procedures | | Definition use the last image hold featurereset the cumulative timer use the pulsed progressive mode
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Term which organ has the highest tissue weighting factor | | Definition |
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Term which international unit of measurement is used to describe absorbed dose | | Definition |
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Term which minimum thickness of lead shielding is required to cover the Bucky slot during fluoro exams | | Definition |
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Term which value represents the annual maximum dose limit in mSv for exposure to the extremities in medical imaging personnel | | Definition |
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Term which measure is used to determine the overall risk of exposure to ionizing radiation | | Definition |
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Term which is the maximum allowable exposure to the embryo or fetus each month | | Definition |
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Term a 14 year old female patient arrives in the radiology department for a scoli series. Which option provides both the best image quality and lowest radiation dose for this patient | | Definition |
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Term for which lumbar spine projections should a shaped contact shield be applied to provide protection for the gonads of a male patient | | Definition AP oblique, RPO positionAP L5-S1 spot | |
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Term how will the DAP be affected during a 4 Roentgen exposure if the collimated field is reduced from 8x8 to 4x4 | | Definition DAP will be half the original | |
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Term which statement correctly describes the amount of kinetic energy required for a photon to remove an inner shell electron from its orbit | | Definition the same as or greater than the electron binding energy | |
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Term in the diagnostic energy range, which substances possesses the greatest ability to absorb radiant energy through the process of photoelectric absorption | | Definition |
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Term which are by products of photoelectric absorption | | Definition photoelectron and characteristic photon | |
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Term which interaction with matter contributes to the majority of occupational exposure | | Definition |
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Term which describes the relationship between LET and RBE (relative biologic effectiveness) | | Definition as LET increases, RBE increases | |
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Term which describes a linear, non threshold dose response relationship | | Definition no dose may be considered completely safe | |
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Term which term is an alternate name of the prodromal stage of ARS | | Definition |
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Term which whole body dose most closely approximates the LD 50/30 for humans | | Definition |
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Term at which energy range does photodisintegration occur | | Definition above 10 megaelectron volts MeV | |
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Term for which purpose is gonadal shielding recommended | | Definition to reduce the probability of genetic mutations | |
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Term which combination of technical factors is recommended to reduce patient dose | | Definition |
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Term what is the primary purpose of beam filtration | | Definition to protect the patient from low energy X-rays | |
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Term patient dose during Fluor can be minimized by which methods | | Definition use larger diameter modesuse the last image hold feature restrict beam size | |
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Term when a pregnant patient must undergo a radiographic procedure, which practices will minimize radiation exposure | | Definition collimate to include only the area of interestselect appropriate exposure factors for the part being imaged shield the abdomen and pelvis whenever this doesn't interfere with the image | |
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Term which method should be the first choice to reduce exposure to the reproductive organs in every radiographic exam | | Definition collimate to include only the anatomy of interest | |
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Term how should the radiology manager schedule a pregnant radiographer | | Definition maintain the employee's same schedule before declaration of pregnancy | |
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Term how many mm of lead equivalency is recommended for lead aprons worn by pregnant radiographers | | Definition |
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Term how should a mobile c-arm fluoroscope be positioned to provide maximum radiation protection to the operator | | Definition with the X-ray tube under the patient and as far from the patient as possible | |
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Term which factor is applied to scatter and secondary radiation for shielding requirements in X-ray rooms | | Definition |
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Term if all other factors remain constant, how is radiation dose related to SOD | | Definition |
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Term over the entire gestational period, which is the fetal exposure limit | | Definition |
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Term place the following types of dosimeters in the proper order from least radiosensitive to most radiosensitive | | Definition film badgeTLDOSL pocket ionization chamber | |
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Term place the following actions in order of greatest to least impact for reducing occupational exposure during fluoroscopy | | Definition stand behind control paneldouble distance from x ray source or patientcut exposure time in half wear a lead apron
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Term the appendix is connected anatomically to which structure | | Definition |
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Term Which anatomical landmark coincides with the level of the CR entrance point for a PA chest projection | | Definition Inferior border of the scapula | |
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Term How far should the upper border of the IR extend above the shoulders for a PA chest projection | | Definition |
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Term which body plane is positioned perpendicular to the IR on a lateral chest projection | | Definition |
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Term How should the CR be angled to compensate for a patient who is unable to assume the erect lordotic position for an AP axial lordotic projection of the chest | | Definition 15 to 20 degrees cephalic | |
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Term where should the CR enter the patient on an AP projection of the chest with the patient in the lateral decubitus position | | Definition Three inches below the jugular notch | |
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Term How many posterior ribs should be visible above the diaphragm on a PA chest projection | | Definition |
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Term Which method of respiration will demonstrate the maximum number of ribs above the diaphragm when performing an AP projection of the upper ribs | | Definition Suspended deep inspiration | |
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Term which method of respiration is recommended for a soft tissue neck exam to evaluate the trachea | | Definition |
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Term Where should the CR be directed for a lateral lumbosacral spine projection when using a 14x17 IR | | Definition |
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Term Which lumbar spine structures are best demonstrated with the patient in a 45 degree LPO position | | Definition The left zygapophyseal joints | |
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Term where should the CR enter the patient for a lateral sacrum projection | | Definition 3-4 inches posterior to the ASIS | |
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Term A PA axial projection of the coccyx is performed because the patient is unable to tolerate the supine position due to injuries sustained after falling backward. How should the CR be adjusted for this projection | | Definition |
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Term How should the radiographer rotate the patient's lower leg and foot for an AP oblique projection of the second toe | | Definition |
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Term Which x ray tube orientation is used to create a 90 degree angle between the CR and the metatarsals for an AP axial projection of the foot | | Definition |
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Term Which tarsal bone is best seen when the plantar surface of the foot is positioned perpendicular to the IR and a 40 degree cephalic CR is directed to the base of the third metatarsal | | Definition |
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Term which bones make up the ankle mortise | | Definition |
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Term In which position is the knee placed in order to demonstrate the head of the fibula without superimposition | | Definition 45 degrees medial rotation | |
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Term what is the correct CR location for an AP knee projection | | Definition 1/2 inch below the apex of the patella | |
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Term The Holmblad method is performed to demonstrate which radiographic appearance | | Definition |
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Term Which is the correct CR location for a PA hand projection | | Definition Third metacarpophalangeal (MCP) joint | |
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Term How are the patient's hand and fingers positioned for a PA wrist projection | | Definition Hand pronated with fingers flexed | |
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Term Which radiographic appearance results when the anterior surface of the patient's elbow is rotated 45 degrees medially for an AP elbow projection | | Definition The coronoid process is seen in profile | |
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Term Which appearance is demonstrated by a lateral projection of the shoulder obtained using the Lawrence method | | Definition The proximal humerus is projected through the lung field | |
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Term An AP shoulder image acquired with the epicondyles perpendicular to the IR will demonstrate which radiographic appearance | | Definition The lesser tubercle is seen in profile medially | |
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Term The Alexander method is performed to demonstrate dislocation of which joint | | Definition |
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Term For which purpose is orthoroengenography performed | | Definition |
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Term Which wrist projection best demonstrates a Colles' fracture | | Definition |
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Term Which describes the appearance of a PA axial projection of the skull using the Caldwell method | | Definition Petrous pyramids are demonstrated in the lower third of the orbit | |
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Term Which CR orientation is recommended for a standard AP axial projection of the full to demonstrate the dorm sell within the foramen magnum | | Definition |
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Term Which skull positioning line is situated perpendicular to the IR when performing a parietoacanthial projection (Waters method) of the facial bones | | Definition |
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Term Beginning with the patient's head in true lateral position, which positioning method is recommended for demonstrating the mandibular body without foreshortening on an axiolateral oblique projection of the mandible | | Definition Rotate the patient's head 30 degrees toward the IR | |
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Term Which statement most accurately describes the position of the kidneys within the abdominal cavity of an average patient | | Definition The left kidney is positioned slightly higher than the right kidney | |
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Term If a radiographic image is requested to show the nephrogram phase of an IVU, how long after IV contrast administration should this image be obtained | | Definition |
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Term Which is the correct CR location for an AP oblique projection of the urinary bladder during a cystogram | | Definition 2 inches superior to the pubic symphysis and 2 inches medial to the elevated ASIS | |
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Term An exam of the right SI joint was performed by placing the patient in a 30 degree LPO position with the CR directed 1 inch medial to the left ASIS. The resulting image demonstrates a closed right SI joint space. Which is the most likely explanation for this appearance | | Definition The CR was directed to the wrong ASIS | |
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Term Which radiographic finding is characteristic of cervical spine trauma resulting in a Jefferson fracture | | Definition Open mouth view demonstrates bilateral displacement of the lateral masses of C1 | |
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Term Which alternative procedure is recommended when positioning a patient for a Swimmer's lateral (Twining method) of the cervicothoracic region (C7-T1) if the shoulder away from the IR cannot be fully depressed | | Definition Angle the CR 3-5 degrees caudal | |
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Term Which structure is demonstrated without superimposition on a properly positioned medial oblique foot image | | Definition |
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Term Which position/projection of the elbow best demonstrates the trochlear notch of the ulna | | Definition Lateral, lateromedial projection | |
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Term Which positioning procedure is performed to demonstrate the right intervertebral foramina of the cervical spine | | Definition AP projection, 45 degree LPO position | |
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Term An AP pelvis image shows evidence that the patient is rotated toward the right hip. Which statement below best describes the appearance of the image | | Definition Right iliac wing appears larger than the left iliac wing | |
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Term At which location is the CR directed for an AP projection of the thoracic spine | | Definition Midway between the sternal notch and the xiphoid process | |
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Term After contrast has been administered in to the hip joint during hip orthography, what should the patient do | | Definition Exercise the joint to allow the contrast to completely fill the joint space | |
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Term Which portion of the small intestine is most commonly affected by Chron's disease | | Definition |
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Term Which finding is demonstrated most clearly by a left lateral decubitus image of the abdomen | | Definition |
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Term In which position should the patient be placed for insertion of the enema tip during a barium enema procedure | | Definition |
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Term In which exam is contrast introduced in to the area of interest in a retrograde fashion | | Definition |
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Term Why is a cross table lateral preferred over a recumbent left lateral when obtaining images for a myelogram | | Definition Contrast may move out of the area of interest when rolling into the lateral position | |
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Term What should be demonstrated on a properly exposed supine image of the abdomen | | Definition |
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Term which type of pathology is defined as inflammation of an outpouching of the colon | | Definition |
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Term The RPO chest position may be used instead of the LAP position to demonstrate the heart and great vessels. How will using the RPO position affect the appearance of these structures | | Definition The left lung appears shorter than the right | |
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Term Place the parts of the respiratory tract in order from the most proximal to the most distal | | Definition TracheaPrimary bronchiBronchioles Alveolar sacs | |
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Term Based on the appearance of the image, in which position was the patient placed for this post fluoroscopy image | | Definition |
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