ARRT REGISTRY EXAM 2025 REVIEW WITH 550+ QUESTIONS WITH CORRECT DETAILED ANSWERS, Exams of Nursing

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ARRT REGISTRY EXAM 2025 REVIEW WITH

550+ QUESTIONS WITH CORRECT

DETAILED ANSWERS| 2025 LATEST EXAM

A+ GRADE

A patient restraint:

1. is typically in use before the patient arrives at the radiology department.
2. would include using tape to help a child stay still.
3. might include a vest with straps that are tied to stretcher. a. 1 & 2 only b. 1 & 3 only c. 2 & 3 only d. 1, 2, & 3 Correct Answer b. 1 & 3 only Which of the following is an acceptable means for receiving a request to perform an examination?
4. verbal request over the phone from doctor's office.
5. written request from doctor's office.
6. verbal request from the patient. a. 1 only b. 1 & 2 only c. 2 & 3 only d. 1, 2 & 3 Correct Answer b. 1 & 2 only Which of the followings is the most common site for measuring a patient's pulse? a. brachial b. subclavian c. radial d. carotid Correct Answer c. radial

Fuji's cassette-based system uses a sensitivity (S) number to determine if the proper exposure was received by the imaging plate. If 200 is the ideal number, what number would indicate the plate was exposed to twice the necessary radiation? A. 50 B. 100 C. 200 D. 400 Correct Answer B. 100 Which of the following positions/projections best demonstrates the esophagus filled with barium? a. AP b. LAO c. RAO d. right lateral decubitus Correct Answer c. RAO (a 35 degree RAO projects the esophagus between the heart and the vertebral column) Which of the following will best demonstrate the right sternoclavicular joint? a. 10-15 degree LAO b. 10-15 degree RAO c. 20-25 degree LAO d. 20-25 degree RAO Correct Answer b. 10-15 degree RAO After a myelogram, the patient may be taken to which of the following modalities while the contrast is still in the subarachnoid space? a. CT b. MRI c. sonography d. nuclear medicine Correct Answer a. CT

How will the use of radiographic grids affect the contrast of a radiograph? a. produce lower contrast b. eliminate contrast c. have no effect on contrast d. produce higher contrast Correct Answer d. produce higher contrast Non-ionic, water-soluble iodinated contrast media: a. contains no iodine b. produces no adverse reaction c. does not dissolve into charged particles d. is less expensive than ionic, water-soluble contrast media Correct Answer c. does not dissolve into charged particles The first ribs form a joint with... a. manubrium b. body of sternum c. clavicle d. xiphoid process Correct Answer a. manubrium What is the process of "boiling off" electrons called? a. space charge production b. electron emission c. thermionic emission d. heat production Correct Answer c. thermionic emission Which of the following types of fractures would most often be seen in children? a. greenstick b. compound c. compression d. impacted Correct Answer a. greenstick Which of the following describes the term 'projection'?

a. patient position b. radiographic view c. body habitus type d. path of the xray beam Correct Answer d. path of the xray beam For an L5-S1 lateral spot, the central ray enters on the midcoronal plane at a point: a. 1 1/2" inferior to the iliac crest b. 2 1/2" superior to the iliac crest c. 3 1/2" inferior to the iliac crest d. directly on the iliac crest Correct Answer a. 1 1/2" inferior to the iliac crest Morbid obesity falls into which category? a. 10 BMI b. 15 BMI c. over 20 BMI d. over 30 BMI Correct Answer d. over 30 BMI The Congressional Federal Register (21 CFR) requires the exposure switch for a fluoroscopic unit must be a deadman type. What does a deadman switch require? a. continuous pressure b. remote control c. voice activation d. AEC Correct Answer a. continuous pressure which of the following will cause visible grid lines on an image that was exposed in a bucky device? a. backup time set too long b. bucky device not selected c. wrong ionization chamber selected d. poor patient positioning Correct Answer b. bucky device not selected

There are 2 general types of cells in the human body. What are they? a. somatic and genetic b. mitotic and somatic c. mitotic and genetic d. ionic and prolific Correct Answer a. somatic and genetic Where should the CR be located for an AP projection of the shoulder joint? a. acromion b. coronoid process c. coracoid process d. glenoid fossa Correct Answer c. coracoid process when does major organogenesis occur in the fetus? a. 2-8 weeks after conception b. 10-12 weeks after conception c. 15-20 weeks after conception d. 24-36 weeks after conception Correct Answer a. 2-8 weeks after conception Which of the following stomach positions/projections will best demonstrate the duodenal loop? a. AP b. LAO c. RAO d. erect Correct Answer c. RAO Nausea, vomiting, and headache are reactions to contrast media that are considered to be: a. mild b. moderate c. severe d. extreme Correct Answer a. mild

A flat panel detector is exposed with nothing between the xray tube and the detector. The pixel readings of 5 different regions of interest across the detector are averaged and compared. What quality control test was performed? a. detectability b. linearity c. repeatability d. uniformity Correct Answer d. uniformity when radiation causes hematopoietic death, what is the main reason why the person died? a. hemorrhage b. respiratory system c. immune system is destroyed d. heart failure Correct Answer c. immune system is destroyed which of the following is a major factor in contributing to a patient contracting an infection while in the hospital? a. unsterile instruments b. coming in contact with infected patients c. soiled linen d. poor health Correct Answer d. poor health In computed radiography, the imaging plate should be erased if it has not been used for how many hours? a. 8 b. 16 c. 24 d. 48 Correct Answer d. 48 betadine is used for which of the following? a. topical anesthetic b. contrast agent c. lubricant

d. skin disinfectant Correct Answer d. skin disinfectant which of the following documents express a patient's choices about his/her future care? a. patient's bill of rights b. standard of ethics c. living will d. informed consent Correct Answer c. living will in order to demonstrate the first 2 cervical vertebrae in an AP open mouth projection, which of the following mjust be done? a. adjust the head so the atlas and axis are superimposed. b. adjust the head so the lower margin of the upper incisors and mastoid tips are superimposed c. rotate the head 45 degrees. d. extend the chin until the mentomeatal line is perpendicular to the IR. Correct Answer b. adjust the head so the lower margin of the upper incisors and mastoid tips are superimposed what is the minimum number of persons needed for a stretcher- to-table transfer when using a draw sheet? a. 1 b. 2 c. 3 d. 4 Correct Answer c. 3 which of the following devices is designed to attenuate all secondary radiation originating under the table during fluoroscopy? a. bucky slot cover b. leaded screen drapes c. deadman switch d. fluoroscopy tower Correct Answer a. bucky slot cover what is the greatest advantage of digital imaging?

a. contrast resolution b. spatial resolution c. decreased exposure d. less distortion Correct Answer a. contrast resolution When imaging an average patient, DO NOT use over _______ kVp when using iodinated contrast media. A. 50 B. 70 C. 90 D. 99 Correct Answer B. 70 which of the following is used to determine if there is any separation of the AC joint? a. patient supine b. patient erect, steep oblique c. patient erect, holding weights d. 25 degree caudad angle Correct Answer c. patient erect, holding weights which vertebrae have demifacets for the articulation of ribs? a. cervical b. thoracic c. lumbar d. sacral Correct Answer b. thoracic automatic rescaling means the values of interest that were determined by the histogram are used to produce digital images with the proper: a. brightness b. contrast c. spatial resolution d. size and shape Correct Answer a. brightness

a sampling frequency of 10 pixels per millimeter would produce how much spatial resolution? a. 1 line pair per millimeter b. 5 line pairs per millimeter c. 10 line pairs per millimeter d. 20 line pairs per millimeter Correct Answer b. 5 line pairs per millimeter what does the term asepsis mean? a. free from infection b. unsterile c. clean d. spread of disease Correct Answer a. free from infection in the DR system, an analog-to-digital converter (ADC) converts an electric signal into; a. data b. numbers c. pixels d. ranges Correct Answer b. numbers What is the maximum amount of leakage radiation that can escape from an xray tube? a. 1 mGy/hr/meter b. 2 mGy/hr/meter c. 3 mGy/hr/meter d. 4 mGy/hr/meter Correct Answer a. 1 mGy/hr/meter which of the following are true of radiation-induced mutations?

1. radiation-induced mutations are usually harmful
2. radiation-induced mutations are always recessive.
3. the frequency of radiation-induced mutations is proportional to dose a. 1 only

b. 1 & 2 only c. 1 & 3 only d. 1, 2, & 3 Correct Answer d. 1, 2 & 3 failure of a radiographer to provide reasonable care describes which of the following? a. assault b. battery c. negligence d. slander Correct Answer c. negligence which of the following long-term effects to ionizing radiation is considered the most common? a. cataracts b. leukemia c. myocardial infarction d. life-span shortening Correct Answer b. leukemia what are the L-shaped bones that are located posterior to the nasal cavity? a. nasal conchae b. palatine c. maxilla d. zygomatic Correct Answer b. palatine which of the following is the radiation that has passed through an anatomical part and is available for recording the radiographic image? a. primary radiation b. quality radiation c. remnant (exit) radiation d. secondary radiation Correct Answer c. remnant (exit) radiation which of the following is not related to spatial resolution? a. OID

b. SID c. motion d. kVp Correct Answer d. kVp Which of the following is NOT an accessory organ of the digestive system? a. gallbladder b. spleen c. pancreas d. liver Correct Answer b. spleen (the main function of the spleen is to store blood) Which of the digital systems uses a laser to read the image data? a. computed radiography b. direct digital image receptors c. indirect digital image receptors d. charge-coupled devices Correct Answer a. computed radiography (a laser releases the stored energy as visible light. the intensity of the light is read and converted to electrical data) which of the following would increase the signal-to-noise ratio (SNR)? a. increase xray intensity b. increase scatter radiation c. increase electronic noise d. increase background noise Correct Answer a. increase xray intensity to reduce the risks of causing leukemia, which of the following anatomical parts should be shielded from radiation whenever possible? a. skin b. liver c. bone marrow

d. thyroid Correct Answer c. bone marrow an AP projection of the pelvis requires the patient to be supine, the CR perpendicular, and entering appoint: a. midway between the crests of the ilium b. 2" superior to the pubic symphysis c. parallel to the SI joints d. at the level of the sacral foramina Correct Answer b. 2" superior to the pubic symphysis during a myelogram, which position is the patient in when his head is put lower than his feet? a. fowler b. prone c. tredelenburg d. sim's Correct Answer c. tredelenburg which of the following oblique positions is preferred to demonstrate the sternum? a. RPO b. LPO c. RAO d. LAO Correct Answer c. RAO where should the central ray be directed for an AP projection olf the patella? a. 1 cm distal to the base of the patella b. 1 cm distal to the apex of the patella c. 1 cm proximal to the base of the patella d. parallel to patellar surface Correct Answer b. 1 cm distal to the apex of the patella Where is Henle's loop located? A. Liver

B. Spleen C. Spinal cord D. Kidney Correct Answer D. kidney Which of the following is the patient preparation for an upper GI series? a. clear fluids only prior to exam b. clear fluids for 24 hours prior to exam c. NPO for at least 8 hours prior to exam d. only gum chewing and/or smoking prior to exam Correct Answer c. NPO for at least 8 hours prior to exam which of the following is a postprocessing option to decrease the amount of noise in a digital image? a. masking b. edge enhancement c. equalization d. smoothing Correct Answer d. smoothing A CT scanogram can be used for which of the following purposes? a. bone survey b. long bone measurement c. bone age d. soft tissue neck Correct Answer b. long bone measurement primary radiation can be produced by which of the following methods when electrons interact with the anode (target)?

1. Bremsstrahlung
2. Characteristic
3. Compton a. 1 only b. 1 & 2 only c. 2 & 3 only

d. 1, 2, & 3 Correct Answer b. 1 & 2 only Luminance refers to the brightness of the light emitted from an image display monitor. What are the SI units for luminance? a. joules per volt b. coulombs per meter squared c. candela per square meter d. newtons per watt Correct Answer c. candela per square meter which of the following is a graphical representation of the numerical values that make up a digital image? a. histogram b. bar graph c. scatter graph d. pictograph Correct Answer a. histogram when performing a mobile unit radiographic exam, the radiographer should stand at what angle to the beam? a. 30 degree b. 45 degree c. 75 degree d. 90 degree Correct Answer d. 90 degree what is the most proximal end of the fibula called? a. apex b. head c. neck d. lateral malleolus Correct Answer a. apex AP weight bearing knees are ordered to demonstrate which of the following pathologies? a. tibial plateau fracture b. arthritis c. edema d. torn meniscus Correct Answer b. arthritis

which of the following procedures would require nonionic contrast media as opposed to ionic contrast media? a. intravenous urography b. sialography c. venography d. myelography Correct Answer d. myelography the latent image in a CR imaging plate is formed by which of the following? a. trapped electrons b. charged capacitors c. photostimulable luminescence d. electrical resistance Correct Answer a. trapped electrons (when a CR imaging plate is exposed to xrays, electrons are trapped in a higher energy state forming the latent image) The field positioning light and the actual radiation field CANNOT vary by more than what percentage of the SID? a. 2% b. 5% c. 10% d. 20% Correct Answer a. 2% Which of the following is the preferred SID for a mobile unit image of the chest? a. 36" b. 40" c. 55" d. 72" Correct Answer 72" The scapular Y position is used to demonstrate which of the following? a. acromioclavicular separation b. the shoulder joint in an oblique position

c. anterior or posterior dislocation of the humerus d. the relationship between the coracoid process and the scapular spine Correct Answer c. anterior or posterior dislocation of the humerus the fill factor for each detector element I equal to: a. 10-40% b. 20-50% c. 50-80% d. 70-99% Correct Answer c. 50-80% (the fill factor represents the fraction of each detector element that efficiently collects charges from the energy deposited by the xray signal) Which of the following positions/projections would be preferred if thepatient had left posterior rib trauma? a. RPO & AP b. LPO & AP c. RAO & PA d. LAO & PA Correct Answer b. LPO & AP (pain goes against the plate) Which of the following is/are associated with good body mechanics? a. provide a broad base of support b. when lifting, bend your knees and keep your back straight c. keep your load well balanced and close to your body d. all of the above Correct Answer d. all of the above What does RIS stand for? Correct Answer Radiology Information System which of the following refers to the movement of the imaging plate as it is being read by the laser? a. fast scan

b. slow scan c. direction d. sliding Correct Answer b. slow scan (the imaging plate moves slowly through the reader as it is being rapidly scanned by the laser) what does PACS stand for? Correct Answer picture archiving and communication system the 4th cervical vertebra lies at the level of which of the following topographical landmarks? a. sternal notch b. angle of mandible c. thyroid cartilage d. mastoid process Correct Answer c. thyroid cartilage for an AP of the sacrum, how is the CR directed? a. 10 degrees caudad b. 15 degrees cephalad c. 10 degrees cephalad d. 15 degrees caudad Correct Answer b. 15 degrees cephalad how many times must the primary beam scatter before reaching the radiographer behind the control booth? a. 1 b. 2 c. 3 d. 4 Correct Answer b. 2 what is the technical name for a CR imaging plate? a. PSL b. CR cassette c. photostimulable phosphor plate d. photosensitive photon absorber Correct Answer c. photostimulable phosphor plate

what is the greatest disadvantage of digital imaging? a. contrast resolution b. spatial resolution c. decreased exposure d. less distortion Correct Answer b. spatial resolution to make sure the proper patient info and images get sent to the proper folder in PACS, the best practice is to make sure the __________ on the worklist matches the ____________on the patient's requisition. a. gender, gender b. birthdate, birthdate c. patient's name, patient's name d. accession number, accession number Correct Answer d. accession number, accession number when imaging the soft tissues of the neck in the lateral position, which of the following upper airway structures should be visualized?

1. nasopharynx
2. oropharynx
3. proximal trachea a. 1 & 2 only b. 1 & 3 only c. 2 & 3 only d. 1, 2, & 3 Correct Answer d. 1, 2, & 3 the term intrathecal refers to an injection into which of the following anatomical areas? a. vein b. artery c. muscle d. spinal canal Correct Answer d. spinal canal

which of the following positions would best demonstrate the rectum filled with barium? a. supine b. erect c. RPO d. lateral Correct Answer d. lateral which of the following positions of the abdomen should be used to demonstrate air-fluid levels when an erect position cannot be obtained? a. prone b. fowler c. right anterior oblique d. left lateral decubitus Correct Answer d. left lateral decubitus a patient suddenly has difficulty breathing, what is the first thing a radiographer should do? a. lie the patient supine b. call for help c. administer oxygen d. administer CPR Correct Answer b. call for help which of the following positions is used to demonstrate foreign bodies in the hand? a. tunnel b. carpal c. ulnar flexion d. lateral in extension Correct Answer d. lateral in extension the quality of an image displayed on a monitor depends on which of the following>

1. matrix size
2. size of field of view
3. bit depth

a. 1 only b. 2 only c. 2 & 3 only d. 1, 2, & 3 Correct Answer d. 1, 2, & 3 the margin of error a radiographer has in setting his/her technical factors and still obtaining a diagnostic quality image is known as what? a. Luck b. technical margin c. exposure latitude d. error area Correct Answer c. exposure latitude which of the following items in the imaging department may contain latex?

1. gloves
2. enema tips
3. tourniquets a. 1 & 2 only b. 1 & 3 only c. 2 & 3 only d. 1, 2, & 3 Correct Answer d. 1, 2, & 3 scatter radiation will have the greatest effect on which of these radiographic qualities? a. spatial resolution b. distortion c. receptor exposure d. contrast Correct Answer d. contrast which bones make up the elbow joint? a. radius & ulna b. radius & humerus

c. radius, ulna, & humerus d. capitulum, trochlea, and radial head Correct Answer c. radius, ulna, & humerus if the SID is 40" and the OID is 8" what is the magnification factor? a. 1.25 b. 1.55 c. 5.00 d. 5.25 Correct Answer a. 1.25 (magnification factor = SID/SOD. 40/32 = 1.25) the distance between the centers of two adjacent pixels is known as: a. fill factor b. pixel pitch c. spatial resolution d. line pair Correct Answer b. pixel pitch while using a C-arm fluoroscopic unit, which of the following will reduce radiation exposure to the patient the most? a. placing the xray tube as close to the patient as possible. b. placing the image intensification tube as close to the patient as possible. c. placing the patient mid-way between the xray tube & the image intensification tube. d. increase mA Correct Answer b. placing the image intensification tube as close to the patient as possible. what is it called when part of a patient's bronchial tree is blocked, causing a partial collapse? a. pneumothorax b. atelectasis c. hemothorax d. pleural effusion Correct Answer b. atelectasis

which of the following publications recommends limits of exposure to ionizing radiation? a. NCRP #100 b. NCRP #102 c. NCRP # 105 d. NCRP #116 Correct Answer d. NCRP #116 in a busy imaging department, how often should CR imaging plates be cleaned? a. daily b. weekly c. monthly d. yearly Correct Answer c. monthly which of the following exposure indicator numbers indicates that the patient was overexposed? a. 2.2 b. 2000 c. 100 d. 200 Correct Answer c. 100 which type of shielding should be used while fluoroscoping an infant for an upper GI exam? a. shadow shield b. shaped contact shield over the pelvis c. flat contact shield over the pelvis d. flat contact shield under the pelvis Correct Answer d. flat contact shield under the pelvis which of the following would NOT be considered a type of transmission-based precaution? a. AIDS b. contact c. airborne

d. droplet Correct Answer a. AIDS what is the minimum schedule for testing lead aprons and gloves for shielding defects? a. weekly b. monthly c. bi-monthly d. annually Correct Answer d. annually which of the following positions/projections will produce the least exposure to the breasts during a scoliosis radiographic series? a. AP b. PA c. lateral d. RPO Correct Answer b. PA what is the rounded process on the proximal, lateral aspect of the femur called? a. lateral epicondyle b. femoral tuberosity c. greater trochanter d. medial tuberosity Correct Answer c. greater trochanter the greatest intensity of x-rays are toward the ________ end of the tube/ a. anode b. cathode Correct Answer b. cathode to prevent shape distortion, which of the 2 elements must be parallel? a. the object and the CR b. the object and the image receptor c. the CR and the image receptor d. the CR and the object Correct Answer b. the object and the image receptor

which of the following situations has the greatest potential for a radiographer to be exposed to primary radiation? a. assisting during fluoroscopy b. mobile radiography c. operating a C-arm d. holding patients Correct Answer b. holding patients what is the name of the bony ridge that lies beneath the eyebrows? a. glabella b. supercilliary ridge c. supraorbital groove d. anterior orbital protuberance Correct Answer b. supercilliary ridge which of the following affect the attenuation of the x-ray beam?

1. thickness of body part (density)
2. type of tissue (atomic number)
3. speed of the photon a. 1 only b. 1 & 2 only c. 1 & 3 only d. 1, 2, & 3 Correct Answer b. 1 & 2 only (all x-ray photons travel at the speed of light) how does quantum noise appear on a digital image? a. blurry b. unsharp c. grainy d. high contrast Correct Answer c. grainy (quantum noise has also been described as having a salt and pepper appearance)

which of the following would be considered an advantage of the air-gap technique? a. less distortion of the part b. lower contrast on the radiograph c. less radiation to the patient d. greater filtration of the xray beam Correct Answer c. less radiation to the patient (the air-gap technique reduces the need for a grid, therefore decreasing the exposure by as much as 5 times) digital imaging requires higher frequency grids to prevent the Moire effect. This makes the grid less efficient, therefore the grid ratio is increased to compensate. How does this high frequency, high ratio grid affect patient exposure? a. patient exposure is decreased b. patient exposure is increased c. patient exposure remains the same d. the use of grids have no effect on patient exposure Correct Answer b. patient exposure is increased which of the following are best demonstrated in the oblique position of the lumbar spine? a. intervertebral foramina b. spinous processes c. zygapophyseal joints d. pedicles Correct Answer c. zygapophyseal joints what is the device called that regulates the amount of IV fluid given to a patient and the time of infusion? a. intravenous meter b. infusion pump c. ventilator d. fluidmanometer Correct Answer b. infusion pump which of the following refers to the quality of the x-ray beam?