Download ARRT Practice Questions with Answers: Radiography Fundamentals and more Exams Medicine in PDF only on Docsity!
ARRT PRACTICE QUESTIONS WITH 100% CORRECT ANSWERS
"A skin rash triggered by a reaction to food, medicine, or other irritants. - CORRECT ANSWER
Hive Or Urticaria"
"Transmission of an infection by insects such as a tick or mosquito is known as a? - CORRECT
ANSWER Vector"
"When an object is free of all microorganisms it is termed? - CORRECT ANSWER Sterile"
"What type of radiographic procedure requires an intrathecal injection? - CORRECT ANSWER
Myelogram"
"______ is a route of administration for drugs via an injection into the spinal canal - CORRECT
ANSWER intrathecal"
"Which gauge size has the biggest lumen? - CORRECT ANSWER The smallest number gauge
has the biggest lumen"
"If the CR is angled 40° Cephalic what projection of the calcareous so calcis are you taking? -
CORRECT ANSWER Plantodorsal Projection"
"In the thoracic cavity each lung is enclosed in a? - CORRECT ANSWER Pleura"
"The best way to control voluntary motion is? - CORRECT ANSWER Careful explanation of the
procedure to the patient"
"What is demonstrated on the oblique position of the cervical spine? - CORRECT ANSWER
Intervertebral foramina"
"In relation to the Esophagus the trachea is located where? - CORRECT ANSWER The trachea
is anterior in relation to the esophagus"
"Which position will demonstrate the right axillary ribs? - CORRECT ANSWER RPO
Or LAO"
"The manubrial notch is located at the level of? - CORRECT ANSWER T2-t3 interspace"
"Which projection of the ankle would best demonstrate the distal tibio fibular joint? - CORRECT
ANSWER Medial oblique 45°"
"What is the position of the gallbladder in a Asthenic patient? - CORRECT ANSWER Inferior
and medial"
"The sternoclavicular joint is best demonstrated with the patient PA and? - CORRECT
ANSWER A slightly oblique position with the affected side adjacent to the IR. RAO"
"What position will demonstrate the patients left kidney parallel to the IR and the right kidney
perpendicular to the IR? - CORRECT ANSWER 30 degrees RPO or LAO"
"Which position will demonstrate the lumbar intervertebral foramina? - CORRECT ANSWER
Lateral"
"Which position will demonstrate the apophyseal joints closest to the IR? - CORRECT ANSWER
RPO (right) LPO (left)"
"What type of fracture is it called when a bone is driven into another bone? - CORRECT
ANSWER Impacted"
"No grid
(Times mAs by...) - CORRECT ANSWER 1"
"How will the x-ray photons intensity be affected if the SID is doubled? - CORRECT ANSWER
The intensity of the beam will decrease four times this is known as the inverse square law" "If the patient received 2000 MRAD during a 10 minute fluoro exam how much exposure will the
patient recieve in five-minutes? - CORRECT ANSWER 1000 Mrad which is half of what they
received in 10 minutes"
"The photo electric effect is an interaction between x-ray photons and... - CORRECT ANSWER
And inner shell electron"
"What is recommended for the pregnant radiographer to use as far as the dosimeter badge? -
CORRECT ANSWER Wear one dosimeter badge outside the lead apron at the collar level and
one dosimeter badge inside the lead apron at the level of the waist so A total of two badges are worn and these badges position should never be interchanged"
"The reduction in the intensity of the x-ray beam as it passes through a material is termed? -
CORRECT ANSWER Attenuation"
"The largest amount of diagnostic x-ray absorption occurs in which tissue? - CORRECT
ANSWER Bone since it is the most dense tissue"
"The effects of radiation on biological material are dependent on several factors. If a quantity of
radiation is delivered to a body over a long period of time the fact will be? - CORRECT ANSWER
The effect will be less than if it were delivered all at one time for a short period of time"
"What interaction contributes most to occupational exposure? - CORRECT ANSWER Compton
Scatter"
"What factors affect both the quality and the quantity of the primary been? - CORRECT
ANSWER Half value layer (hvl)
KV"
"The unit of exposure in air is? - CORRECT ANSWER Roentgen (C/kg)"
"When a fast screen film system is used with the slow screen film automatic system the resulting
images are? - CORRECT ANSWER Too dark or overexposed"
"A change to 3 phase and 6 pulse = ____ (original mAs) - CORRECT ANSWER 2/3"
"A change to 3 phase and 12 pulse = ____ (original mAs) - CORRECT ANSWER 1/2"
"What does a penetimeter evaluate? - CORRECT ANSWER Penumbra"
"Edge blur - CORRECT ANSWER Penumbra"
"Field of view (FoV)/ matrix = - CORRECT ANSWER Pixel Size"
"As matrix size increases pixel size - CORRECT ANSWER Decreases"
"mAs controls - CORRECT ANSWER Density"
"KVP controls - CORRECT ANSWER Contrast"
"Windowing - CORRECT ANSWER Changing image brightness
Contrast Scale"
"A star pattern tests what? - CORRECT ANSWER Focal spot size"
"Decreasing film size from 14 x 17 to 8 x 10" will do what? - CORRECT ANSWER Decrease
radiographic density and decrease the amount of scatter" "A group of exposure factors are given consisting of MA and time. Which will produce the
greatest radiographic density? - CORRECT ANSWER Multiply all factors
the highest mas will produce the highest density"
"High mass equals high ______ - CORRECT ANSWER Density"
"The process of leveling and windowing of digital images determines? - CORRECT ANSWER
Contrast adjusting the level adjusts the optical density and adjusting the window adjust the contrast"
- Window leveling"
"What controls the number of electrons passing from the cathode to the anode an x-ray tube? -
CORRECT ANSWER Mas"
"What controls the quantity of the x-rays produced at the anode? - CORRECT ANSWER Mas"
"Quantity - CORRECT ANSWER Mas"
"Quality - CORRECT ANSWER Kvp"
"What controls the amount of radiation exiting the x-ray tube? - CORRECT ANSWER Mas"
"As mas is increased density is____in the same amount - CORRECT ANSWER Increased"
"As mas is decreased density_____in the same amount - CORRECT ANSWER Decreases"
"What directly controls the energy or quality of the x-rays produced? - CORRECT ANSWER
Kvp"
"As KVP _____, a greater potential difference exists between the cathode in the anode -
CORRECT ANSWER Increases"
"As the_____ __________increases, the electrons from the cathode strike the anode in greater
numbers and with greater energy - CORRECT ANSWER Potential difference"
"As a Kvp increases a greater potential difference excists which results in an increase level of
production of___wavelength and high-energy radiation - CORRECT ANSWER Short"
"KVP's affect on density is governed by what? - CORRECT ANSWER 15% rule"
"A increases in KVp of 15% ___ density - CORRECT ANSWER Doubles"
"A decrease in KVp by 15% _____ density - CORRECT ANSWER 1/2s"
"Intensity of the x-ray beam is inversely proportional to the square of the distance between the
source of x-rays and the image receptor - CORRECT ANSWER Inverse square law"
"Intensity is measured in - CORRECT ANSWER Roentgens
Or coulombs/kilogram (SI)"
"Radiographic density is a function of what? - CORRECT ANSWER Beam intensity"
"Beam intensity is governed by the? - CORRECT ANSWER Inverse square law"
"The inverse square law describes changes in____ ______ - CORRECT ANSWER Beam
intensity (and radiographic density which is a function of being intensity)"
"If the SID is doubled intensity (density).... - CORRECT ANSWER Decreases four times"
"If distance is halved, intensity (density) ... - CORRECT ANSWER Increase four times"
"Variations in intensity is the result of the____of the x-ray beam as it travels through space -
CORRECT ANSWER Divergence"
"Different atomic number
Same numbers of neutrons - CORRECT ANSWER Isotones"
"Same element Same atomic number
Different mass - CORRECT ANSWER Isotope"
"Different atomic number
Same mass - CORRECT ANSWER Isobar"
"Late effects
Plastic fiber"
"As matrix size increases pixel size ______ - CORRECT ANSWER Decreases"
"Pixel size is ________ related to resolution - CORRECT ANSWER Inversely"
"Dynamic range = - CORRECT ANSWER Pixel depth/ shades of gray"
"More bits = ____ shades of gray - CORRECT ANSWER More"
"Pix depth is _____ to resolution - CORRECT ANSWER Unrelated"
"A increase in matrix size results in..... - CORRECT ANSWER smaller pixels
Improved resolution"
"Pus in the thoracic cavity - CORRECT ANSWER Empyema"
"Over distentions of air in the alveoli - CORRECT ANSWER Emphysema"
"Congential Clubfoot - CORRECT ANSWER Talipes
Deformed talus shortened Achilles' tendon"
"In which view is the OML at a 37° angle? - CORRECT ANSWER Waters"
"In which view are the petrous ridges projected below the maxillary sinuses? - CORRECT
ANSWER Waters"
"When are the petrous ridges below the orbits? - CORRECT ANSWER Caldwell at 30 degrees
caudad"
"When are the petrous ridges in the bottom one thirds of the orbits? - CORRECT ANSWER PA
caldwell 15 degrees caudad"
"When do the petrous ridges fill the orbits? - CORRECT ANSWER PA view"
"Where is the degree difference of the OML and the IOML for a baby or small child? - CORRECT
ANSWER 14 degrees"
"What is the degree difference between the OML and IOML for an adult? - CORRECT ANSWER
7 degrees"
"Glossitis - CORRECT ANSWER Inflammation of the tongue"
"1 sec - CORRECT ANSWER 1000ms"
"Smallest carpal - CORRECT ANSWER Pisiform"
"Most palpable carpal - CORRECT ANSWER Pisiform"
"In which position is the pisiform free from superimposition? - CORRECT ANSWER AP medial
oblique"
"Processes of the scapula? - CORRECT ANSWER Coracoid
Acromion"
"Elimination of all living microorganisms - CORRECT ANSWER Sterilization"
"The frontal sinuses and ethmoidal are best used in the... - CORRECT ANSWER Pa axial
caldwell"
"The sphenoid sinus is best viewed in the... - CORRECT ANSWER Open mouth waters"
"The maxillary sinuses are best viewed in the .... - CORRECT ANSWER Waters"
"In which view is the dorsum sellae and posterior clinoid process projected through the Foramina
Magnum? - CORRECT ANSWER Townes"
"CR spatial frequency/resolution increases as PSP..... - CORRECT ANSWER Crystal size
decreases"
3 - CORRECT ANSWER Less scatter fog
Fewer gray tones Increase in contrast"
"Beam restriction = - CORRECT ANSWER A decrease in Compton interations"
"Contrast decreases as filtration ____ - CORRECT ANSWER Increases"
"Anatomy/pathology = ________ ______ - CORRECT ANSWER Subject contrast"
"What controls contrast? - CORRECT ANSWER Atomic number
Tissue density Tissue thickness Contrast agents"
"Controls X-ray beam energy - CORRECT ANSWER Kvp"
"Grids increase ____ - CORRECT ANSWER Contrast"
"Beam restriction increases ____ - CORRECT ANSWER Contrast"
"Protrusion of a portion of the stomach through the cardiac sphincter - CORRECT ANSWER
Hiatal Hernia"
"Chonr- - CORRECT ANSWER Cartilge"
"Thyroid Skin Extremities
Occupational Dose Equivalent Limit - CORRECT ANSWER 50 Rem
500 mSv 5000 mRem" "50 Rem = _______
mRem and mSv - CORRECT ANSWER 5000mRem
500 mSv"
"Occupational dose equivalent for the lens of the eye? - CORRECT ANSWER 150 mSv"
"Occupational dose equivalent for the pregnant women's fetus/embryo? - CORRECT ANSWER
5 mSv"
"A higher ratio grid = ______ grays - CORRECT ANSWER Fewer"
"Whole body occupational dose equivalent? - CORRECT ANSWER 5 Rem
50 mSv"
"Loss of brightness = _____ FOV - CORRECT ANSWER Decreased"
"RAD - CORRECT ANSWER Radiation absorbed dose"
"Unit of exposure
measures quantity of ionization in the air - CORRECT ANSWER Roentgen"
"Dose to the biological tissue - CORRECT ANSWER rem"
"Rate at which particulate or photon energy is transferred to the absorber - CORRECT
ANSWER LET"
"Measures quality of radiation - CORRECT ANSWER LET"
"Hair losss - CORRECT ANSWER Epilation"
"Tissue without O2 - CORRECT ANSWER Anoxic"
"Tissue with little o2 - CORRECT ANSWER Hypoxic"
"Intensity = - CORRECT ANSWER Quantity"
"Interaction with low energy photons - CORRECT ANSWER Compton scatter"
"Which is the source of most scattered radiation? - CORRECT ANSWER Patient"
"When is more high energy photons produced? - CORRECT ANSWER High kvp"
"Quality - CORRECT ANSWER Kvp"
"Quantity - CORRECT ANSWER MA"
"50 rem = _____ msv - CORRECT ANSWER 500"
"The punch/penetrability - CORRECT ANSWER Kvp"
"High mAs
____ number of photons produced - CORRECT ANSWER High
....is unrelated to photon energy" "____ mas _____ kVP Keeps radiation dose to a minimum
Tube life is extended - CORRECT ANSWER Low mAs
high kvp"
"LET - CORRECT ANSWER Linear Energy Transfer"
"The rate at which energy is transferred from ionizing radiation to the soft tissue - CORRECT
ANSWER LET"
"Leakage radiation is a form of ________ radiation - CORRECT ANSWER Secondary"
"The _________ radiation barrier has a _____ inch lead wall above _____feet. - CORRECT
ANSWER Secondary
"True or false
Secondary barriers should never be struck by the useful beam - CORRECT ANSWER True"
"True or false
Primary barriers can be struck by the primary beam - CORRECT ANSWER True"
"Primary protective barriers are ______ feet tall and should have _____inch thick lead -
CORRECT ANSWER 7
1/16 (1.5mm)"
"The dose to the lens is significantly reduced if a skull is shot ____ - CORRECT ANSWER PA"
"NCRP annual occupational whole-body dose-equivalent limit - CORRECT ANSWER 50 mSV
5rem 5000mrem"
"NCRP annual occupational whole-body dose-equivalent limit for a student under the age of 18 -
CORRECT ANSWER 1mSV 100mrem. 0.1rem"
"NCRP
Lens of eye limit - CORRECT ANSWER 150 mSV 15 rem"
"NCRP
Thyroid, skin and extremities limit - CORRECT ANSWER 500 mSV. 50 rem"
"______ ______ describes the % of time that the primary beam is directed toward a particular
wall - CORRECT ANSWER Use Factor"
"Why is the IV bag 18 to 20 inches above the level of the vein? - CORRECT ANSWER To prevent
the backflow of blood into the tubing which forms a clot and obstructs the flow of the IV fluid"
"An inanimate object that is been in contact with an infectious organism is a? - CORRECT
ANSWER Fomite"
"a specific situation in which a drug, procedure, or surgery should not be used because it may be
harmful to the person. - CORRECT ANSWER Contraindication"
"The main advantage of using non-ionic water-soluble contrast media on the patient would be? -
CORRECT ANSWER Fewer adverse reactions"
"Which projection of the foot will best demonstrate the long arch? - CORRECT ANSWER
Lateralmedial erect or weight-bearing" "In the AP axial projection Townes of the skull with the CR directed 30° caudal to the OML and
passing midway between the EAM which structures best demonstrated? - CORRECT ANSWER
Occipital Bone" "not alive, especially not in the manner of animals and humans. objects like stones
showing no sign of life; lifeless. - CORRECT ANSWER inanimate"
"An imaging examination that involves the introduction of a spinal needle into the spinal canal and the injection of contrast material in the space around the spinal cord and nerve roots (the
subarachnoid space) using a real-time form of x-ray called fluoroscopy. - CORRECT ANSWER
Myelogram"
"The true lateral position of the skull uses which of the following principles? - CORRECT
ANSWER Interpupillary line perpendicular to the IR
MSP parallel to the IR IOML parallel to the IR"
"During myelography a contrast medium is injected into which space? - CORRECT ANSWER
Subarachnoid space" "Which position of the elbow will separate the radial head neck and tuberosity from the
superimposition of the ulna? - CORRECT ANSWER Lateral or external oblique"
"With the patient in the PA position and the OML and CR perpendicular to the IR where will the
Petrous pyramids be demonstrated within the orbits? - CORRECT ANSWER Completely within
the orbits"
"How should a patient be examined for separation of the AC joint? - CORRECT ANSWER Erect
position with use of weights to improve demonstration of both joints"
"The coronoid process can be visualized in profile in what position of the elbow? - CORRECT
ANSWER Both medial and internal AP oblique"
"If the lesser tubercle is in profile for the AP shoulder joint the humorus is in which rotation? -
CORRECT ANSWER Internal"
"If the greater tubercle is in profile then the humorous is in which rotation? - CORRECT
ANSWER External"
"What is likely to occur if 25 Rad is delivered to fetus in early pregnancy? - CORRECT ANSWER
Spontaneous abortion will occur if 25 rad were to be delivered to fetus during the second through the 10th week skeletal abnormalities may appear"
"How does filtration affect the primary beam? - CORRECT ANSWER It increases the average
energy of the primary beam by filtering out the low-energy photons"
"The unit of measurement used to express occupational exposure is the? - CORRECT ANSWER
REM (seivert)"
"The unit of absorbed dose is? - CORRECT ANSWER Rad (gray)"
"Biologic material is most sensitive to irradiation under which condition? - CORRECT ANSWER
Oxygenated"
"How often should lead aprons and lead gloves be check for cracks? - CORRECT ANSWER
Annually or once a year by the fluoroscope"
"Which radiation monitors function on the basis of stimulated luminescence? - CORRECT
ANSWER 0SL and TLD"
