ARRT Practice Questions AND ANSWERS ALL CORRECT 2025 SOLUTION GUARANTEED GRADE A+

ARRT Practice Questions AND ANSWERS ALL CORRECT 2025 SOLUTION GUARANTEED GRADE A+ For the cervicothoracic region lateral projection (swimmer's technique), the recommended position of the humeral head closest to the IR is move anteriorly What two bones are united to form the sternoclavicular joint? . Clavicle and sternum A radiographic contrast medium that absorbs more radiation than the organ in which it is placed is termed a(n) Positive agent Which radiographic projection of the shoulder joint will demonstrate the glenoid cavity in profile? AP oblique (Grashey method) What is the primary factor affecting the brightness of the fluoroscopic image? Density of the anatomic part Which part(s) of the humerus should be palpated and correctly placed to ensure that the humerus is correctly positioned for AP projections? Epicondyles Underexposed radiographs produced while using an AEC device might result from: Having an insufficient backup time set for a very large patient A common group of drugs that are used to promote defecation are termed: Cathartics How much is the patient rotated from the horizontal position to visualize the zygapophyseal joints of the thoracic vertebrae? 70 degrees Which of the following radiographic procedures requires an image demonstrating a long scale of contrast? Chest Select the correct sequence of energy conversions when an indirect flat panel detector is used: X-ray to light to electrons The ovaries are least sensitive to radiation at which age? 20-30 years of age What is the active component of the TLD? lithium fluoride A right lateral decubitus radiograph is taken of a patient with the grid placed behind the patient. This is an example of a(n): AP Projection During cystography, when ureteral reflux is suspected, it is often necessary to include a __________ radiograph. Voiding What is the milliampere setting if the desired milliamperage-seconds are 40 and if the time is setting is 50 milliseconds? 800 mA Which of the following is (are) possible long-term somatic effects of radiation exposure? 1. Nausea & vomiting 2.Carcinogenesis 3. Leukemia 2 & 3 only Direct action may occur after exposure to any type of radiation, but it is much more likely to happen after exposure to: high-LET radiation such as alpha particles Which device in the typical x-ray circuit is adjusted to select the kilovoltage? Autotransformer If all of the other factors remain the same, what effect does excessive filtration have on a radiographic image? Reduced contrast What does the term "fill factor" refer to? The percentage of the pixel face that contains the x-ray detector Which of the following would decrease the production of scatter radiation? A decrease in kilovolts (peak) The American College of Radiology (ACR) recommends that all available dose data from fluoroscopic examinations be recorded in the patient's medical record. Which of the following are acceptable methods of recording approximate dose? 1. Cumulative Air Kerma or Air Kerma area product data 2. Fluoroscopic exposure time and number of images acquired 3. Exposure factors utilized for the examination 1 & 2 Medical asepsis can be defined as the __________ of pathogenic microorganisms in the environment? reduction in number What is the name of the type of skull that is considered to be of average shape and size? Mesocephalic Radioactive materials are stored and processed in the hospital nuclear medicine department. What types of personal protective equipment should the technologist wear while working with these materials? 1. Disposable nitrile gloves 2. Safety glasses 3. Surgical mask 4. Lab coat 5. Close-toed shoes 6. Sleeve protectors 1, 2, 4, 5, 6 When walking into a patient's room that has been diagnosed as having TB, what should you wear? Gloves and a N95 mask This type of DR technology uses silicon semiconductor chips which are tiled together into a matrix array. CCD How many heat units (HU) are generated when setting a technique of 75 kVp, 400 mA, 250 milliseconds, on a 3-phase, 12-pulse generator? 10,575 HU When imaging a morbidly obese patient, which of the following should be considered to minimize the radiation dose to the patient? Use midline body landmarks to ensure accurate positioning. To better visualize the lateral thoracic spine, the patient should be instructed to: Breathe quietly Which of the following situations may cause a patient to go through the grieving process? 1) having a fractured clavicle 2) losing a spouse 3) being diagnosed with cancer 2 & 3 Radiographic contrast is injected into which of the following for a lumbar myelogram? Subarachnoid space Which radiographic decubitus position is preferred for demonstrating air and fluid levels in the abdomen? Left lateral decubitus Where is the sternal angle located? At the junction of manubrium and sternal body If a radiographer sets a technique of 75 kVp and 50 mAs for an AP projection of the abdomen but was asked to reduce the dose to the patient, the radiographer could: Use a higher speed screen with a comparable change in milliamperage-seconds What is the average pulse rate of an infant? 115 to 130 beats per minute What is the name of the bony projection that extends superiorly from the cribriform plate of the ethmoid bone? Crista Galli A patient develops hives several minutes after a radiographic contrast medium is injected. Which type of drug may be given to the patient to counteract this reaction? Antihistamine Which part of the rib articulates with the transverse process of the thoracic vertebrae? Tubercle Which of the following methods represents a means of transmitting a disease through insect bites? Vector Which body position will demonstrate the left ribs free from superimposition of the cardiac silhouette? LAO or RPO Which of the following does not represent a responsibility of the radiographer? Providing patients with complete and accurate information regarding diagnosis and treatment Which of the following groups benefit from the low as reasonably achievable (ALARA) principle as set forth by the NRCP? 1) general public 2) patient 3) radiographers/operators 1, 2, and 3 What is the minimum suggested schedule for testing lead aprons and gloves for inadequate shielding? Annually The anatomic organ used for phonation is called the: Larynx Which anatomy is well demonstrated in a lateral oblique projection of the hand? 1. Joint spaces 2. Distal phalanges 3. Middle phalanges 1, 2 & 3 Which of the following would affect shape distortion? Tube angulation In the third trimester, what is the recommended monthly dose-equivalent limit for the fetus? 0.5 mSv Which of the following radiographic methods are used to demonstrate the intercondylar fossa? 1. Holmblad (PA axial) 2. Danelius-Miller (axiolateral) 3. Camp-Coventry (PA axial) 1 & 3 Which of the following statements would be most important for a pregnant radiographer? Don't switch dosimeters between the collar and waist level" An optimal radiograph of the lumbar vertebrae of a geriatric patient requires a technique of 70 kilovolts (peak) and 40 mAs. To reduce exposure to the patient and maintain adequate radiographic density: Increase kilovolts by 15 percent with a 50 percent decrease in milliamperage-seconds Which of the following would best demonstrate free air in the abdomen of a 3-yr old child with the least risk to the patient? Decubitus projection without a grid Which unit of measurement would be most appropriate for stating the quantity of radiation exposure as measured by an ionization chamber? Air kerma The length of exposure cords on medical imaging equipment is regulated to reduce radiation dose to personnel. Guidelines state that exposure cords: must be at least 6 feet long on mobile equipment Which of the following does not determine CR resolution? Laser scan speed To protect both the patient and the radiographer at a distance of 1 meter from the source, leakage radiation should not exceed? 100 mR/h With a table Bucky device the appearance of grid lines on the radiograph could indicate that: The exposure time is too short The amount of detail present in any image is known as ______ resolution. Spatial The axiolateral oblique projection is used to demonstrate the mandible. How is the head positioned to demonstrate the ramus of the mandible? True lateral A disadvantage of using magnification mode during fluoroscopy is: the patient receives additional dose Which of the following is a reason why lidocaine (Xylocaine) is often used in the radiology department? To provide a topical anesthetic for invasive procedures Which of the following organs receives blood from the portal vein? Liver What type of contrast medium is acceptable for use with infants who have swallowing disorders and with adults who have suspected bronchoesophageal fistulae? Water-based barium As the field size is increased with all other factors remaining constant, the scale of radiographic contrast will: Be lengthened During an ERCP, an endoscope is passed into the duodenum under fluoroscopic control. "Spot" images are usually taken of the _____ duct(s) .1. pancreatic 2. hepatic 3. common bile 1 & 3 What graphs illustrate the relationship between radiation and the organism's response to it? Dose-response curves Some local tissues suffer immediate consequences from high radiation doses. Examples of such tissues include: marrow and female reproductive organs 1, 2 & 3 A metastatic bone survey usually involves imaging these bones: 1. Skull 2. Hands 3. Humeri 4. Femora 5. Pelvis 6. Spine 7. Feet 1, 3, 4, 5, 6 Which of the following positioning methods can reduce radiation dose to sensitive tissues? Pediatric chest imaging should be performed with posteroanterior projections A chest radiograph is taken with a patient erect against the bucky with a 12:1 grid using technical factors of 110 kVp and 5 mAs. What factors should be used on a dedicated chest unit with an 8:1 grid? 110 kVp, 4 mAs What may be demonstrated on a tangential projection of the patella (Settegast method)? 1) transverse fractures of the patella 2) patellofemoral articulations 3) longitudinal fractures of the patella 2 & 3 In the lateral position, how far posterior does the sacrum lie from the median coronal plane? 3" If the patient places the dorsal surface of the right hand against the right thigh, the humerus will be in the: Lateral postiiton Which of the following lines is placed perpendicular to the plane of the image receptor for the AP axial projection of the TMJ articulation? Orbitomeatal line Which imaging study of the urinary system demonstrates the collecting ducts of the kidneys by injecting a radiographic contrast medium through the ureter? Retrograde pyelogram To obtain a more uniform image density, the respiration phase for the AP projection of the clavicle should be: Expiration What is the recommended minimum amount of filtration in a fluoroscopic unit? 2.5 mm Al equiv What is the name of the process that extends superiorly from the scapula? Acromion process If a radiographer failed to correctly mark a radiograph that subsequently resulted in faulty diagnosis, he or she may be guilty of a tort under the doctrine res ipsa loquitur, which means: The thing speaks for itself Of the basic methods of reducing dose to imaging personnel, using the principle of time can be achieved by: Limiting the amount of time the radiographer is in the immediate vicinity of a live x-ray beam All of the following are true of oxygen therapy EXCEPT: oxygen therapy can be prescribed by pharmacists and respiratory therapists The ____ array is divided into square detector elements (DEL). Thin-film transistor Which of the following x-ray interactions with matter is primarily responsible for radiographic contrast? Photoelectric effect Grids can cause the moiré effect on digital images if this principle has not been satisfied: Nyquist criterion When a photostimulable phosphor is irradiated and is in a metastable state, it will emit light _____. 1. 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