ARRT Mock Exam Questions and Answers for Radiography, Exams of Radiography

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M/C: Which of the following are true for an AP coccyx projection?

1. 15-degree cephalic angle.
2. 10-degree caudal angle
3. center 2 inches superior to the pubic symphysis CORRECT ANSWERS✅ 2 and 3 More windings on the primary side of the transformer will create ____ voltage on the secondary side. CORRECT ANSWERS✅ less In the construction of a radiographic grid, what defines the grid ratio? CORRECT ANSWERS✅ height of lead strips compared to the distance between them What positioning technique could help enhance the quality of a lateral knee? CORRECT ANSWERS✅ CR with a 5 degree cephalic angle During a fluoro exposure, a patient's stomach absorbs a total of 0.012 joules of energy. The tissues of the stomach weigh 3 kilograms. What is the absorbed dose? CORRECT ANSWERS✅ 0.004 Gy

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Genetic effects are those that manifest: CORRECT ANSWERS✅ in future generations of the exposed individual General Fluoro is limited to maximum entrance skin exposure rate of: CORRECT ANSWERS✅ 100 mGy/min How is the patient positioned for an external rotation of the shoulder? CORRECT ANSWERS✅ abduct the patients arm T/F: Electrons and x-rays can be focused. CORRECT ANSWERS✅ False Which device in an image receptor can collect and convert light into an electrical signal? CORRECT ANSWERS✅ CCD, Photodiode if a patient begins to have symptoms of hives after an injection of contrast for an IVP, what should be done first? CORRECT ANSWERS✅ call a radiologist What is the most common cause of an off-level grid error? CORRECT ANSWERS✅ grid shifts due to patient movement

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The trachea bifurcates at the level of the _____. CORRECT ANSWERS✅ Aortic notch If the x-ray tube is moved rapidly during a fluoro exam, the image will blur. This is the result of the following: CORRECT ANSWERS✅ camera tube lag during an x-ray exposure, electrons accelerate towards what part of the x-ray tube? CORRECT ANSWERS✅ Anode What is the radiation weighting factor of x-rays? CORRECT ANSWERS✅ 1 M/C: The use of proper collimation serves to:

1. Increase image contrast
2. reduce radiation exposure to the patient
3. decrease effective focal-spot size CORRECT ANSWERS✅ 1 and 2 Inherent filtration refers to: CORRECT ANSWERS✅ filtration that is part of tube design

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What effect will decreasing collimation have on patient radiation exposure CORRECT ANSWERS✅ increases patient radiation exposure The severity of the hell effect can be increased by what change in SID? CORRECT ANSWERS✅ decreasing sid M/C: Federal Law on radiation protection requires which of the following?

1. signage for radiation areas
2. maintaining personal dose records
3. publication of personal dose records CORRECT ANSWERS✅ 1 and 2 What is the largest carpal bone? CORRECT ANSWERS✅ capitate T/F: the esophagus lies anterior to the trachea? CORRECT ANSWERS✅ False To function correctly, the current entering a transformer must be: CORRECT ANSWERS✅ AC

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A middle-aged male with a blood pressure reading 180/80 mmHg would be diagnosed as CORRECT ANSWERS✅ hypertensive PICC lines are used to: CORRECT ANSWERS✅ Deliver medication through a vein M/C: Which of the following facts are true regarding x-rays?

1. x-rays have no mass
2. x-rays travel at the speed of light
3. x-rays have a positive charge CORRECT ANSWERS✅ 1 and 2 M/C: Which of the following is true about the fibula?
4. it sits laterally to the tibia
5. it articulates with the tibia at the proximal end
6. it articulates at the distal medial talus CORRECT ANSWERS✅ 1 and 2

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photons produced outside of the actual focal spot are known as: CORRECT ANSWERS✅ Off focus radiation M/C: Total filtration of the x-ray beam includes:

1. Added Filtration
2. Inherent filtration
3. collimation CORRECT ANSWERS✅ 1 and 2 Which sinus is demonstrated through the open mouth waters? CORRECT ANSWERS✅ sphenoid Which area is myelography not used on? CORRECT ANSWERS✅ sacrum M/C: How does the anode heel effect manifest itself on a radiographic image?
4. Higher exposure on the anode side of the image
5. Higher exposure on the cathode side of the image
6. Increased detail on the anode side of the image

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4. increased detail on the cathode side of the image CORRECT ANSWERS✅ 2 and 3 Penumbra and detail share what relationship? CORRECT ANSWERS✅ increased penumbra = decreased detail When using AEC, which of the following may result in an image with excessive receptor exposure? CORRECT ANSWERS✅ incorrect photo-timer cell selection M/C: What portion of the CR imaging plate protects the plate from unwanted light and background radiation? choose two. A. protective layer B. phosphor layer C. conductive layer D. light shield layer CORRECT ANSWERS✅ c and d How does the presence of oxygen affect the radiosensitivity of a cell CORRECT ANSWERS✅ increased radiosensitivity

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What is the normal pulse rate for an adult? CORRECT ANSWERS✅ 60-100 beats per minute Equivalent dose is a measurement that takes into consideration which of the following variables?

1. radiation type
2. tissue type
3. exposure rate CORRECT ANSWERS✅ 1 Within the oblique lumbar spine, the nose of the scotty dog is: CORRECT ANSWERS✅ Transverse process What is demonstrated in profile in the medial rotation view of the elbow? CORRECT ANSWERS✅ coronoid process A decrease in oxygen content is called? CORRECT ANSWERS✅ Hypoxia

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The wrist should be turned laterally ____ degrees when performing an oblique view CORRECT ANSWERS✅ 45 Acute infection of the parenchyma is characterized as: CORRECT ANSWERS✅ pneumonia On an AP Pelvis, if the lesser trochanters are partially visible, this indicates: CORRECT ANSWERS✅ the feet are in anatomic position The waters view best demonstrates:

1. Frontal sinus
2. maxillary sinus
3. ethmoid sinus
4. sphenoid sinus CORRECT ANSWERS✅ 2 What determines the quantity of electrons in tube current? CORRECT ANSWERS✅ Heating of the filament

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An avulsion fracture is characterized as: CORRECT ANSWERS✅ Fracture where a tendon or ligament pulls off a piece of bone The light signal released by photo-stimulable phosphors is too weak to produce a quality radiograph. The light is enhanced by a device called? CORRECT ANSWERS✅ PMT (Photomultiplier tube) A patient suffering from a gunshot wound to the abdomen would most likely suffer from this type of shock: CORRECT ANSWERS✅ Hypovolemic shock proper positioning of the PA axial caldwell projection includes: CORRECT ANSWERS✅ OML perpendicular to the IR with a 15 degree caudad angle A "coherent scattering" event may also be called CORRECT ANSWERS✅ classical scattering Dynamic range is defined as: CORRECT ANSWERS✅ The range of exposures that can be captured by a detector M/C: Personal monitoring devices are worn for what reasons:

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1. check radiation safety practice
2. monitor dose in the air
3. estimate eye and thyroid dose CORRECT ANSWERS✅ 1 and 3 The smallest exposure difference that can be detected and displayed by the imaging system is called? CORRECT ANSWERS✅ contrast resolution During Fluoro imaging: reducing _____ increases _____. CORRECT ANSWERS✅ reducing kvp increases patient dose Select the bun level that most accurately describes proper kidney function: CORRECT ANSWERS✅ 7 to 20mg/100 ml All the following are examples of conduction materials EXCEPT: A. ALuminum B. Air C. Rubber

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D. Water CORRECT ANSWERS✅ c Scatter radiation does not affect: CORRECT ANSWERS✅ recorded spatial resolution Which of these materials are essential to image production within CR imaging systems? CORRECT ANSWERS✅ PSP Limb-stunting, anecephaly and evisceration are all examples of: CORRECT ANSWERS✅ Teratogenic effects The relationship between distance and intensity can be expressed by which of the following? CORRECT ANSWERS✅ Inverse Square Law The isotropic nature of the x-ray beam means that it? CORRECT ANSWERS✅ travels in all directions If an x-ray tech touches their patient without asking first, they are guilty of: CORRECT ANSWERS✅ battery

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What is the most commonly used beam restricting device? CORRECT ANSWERS✅ collimator Effects of radiation induced damage can be studied from? A. Hiroshima B. Nagasski C. Atomic bomb D. All of these CORRECT ANSWERS✅ d What term describes the FUNCTIONAL portion of the kidney? CORRECT ANSWERS✅ Nephron What is the source of x-radiation in the x-ray tube? CORRECT ANSWERS✅ focal spot M/C: Ingesting barium sulfate and having multiple KUB radiographs performed at 15 and 30 minute intervals is used to visualize

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1. Duodenum
2. Ileocecal Valve
3. Splenic Flexure
4. Plyoric Sphincter CORRECT ANSWERS✅ 1 and 2 What anatomy of the heart aids in delivering oxygen-rich blood to the body: CORRECT ANSWERS✅ >>>>> A patient suffering from a hypoglycemic reaction should be given: CORRECT ANSWERS✅ a bolus of sugar Which bony landmark lies directly medial to the greater trochanter? CORRECT ANSWERS✅ Pubic Symphysis