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LMRT STATE EXAM 2023-2024 ACTUAL EXAM QUESTIONS
"the high-speed rotation (10,000 rpm) of the anode enables - CORRECT ANSWER Greater
dissipation of heat from high technical factors"
"The degree of angulation of the x-ray tube target will determine the: - CORRECT ANSWER
size of the actual and effective focal spot" "A dual-focus X-ray tube has: 1: Two filaments 2: Two focal spot sizes
3: Two anodes - CORRECT ANSWER 1 and 2"
"The anode heel effect is a phenomenon of X-ray production that results in: - CORRECT
ANSWER Uneven distribution of radiation within the x-ray field"
"The penetrating power of the X-ray beam is controlled by varying the - CORRECT ANSWER
Peak kilovoltage (kVp)"
"The rate flow of current flow across the X-ray tube is measured in - CORRECT ANSWER mA"
"Doubling the mA will result in 1: increased patient dose 2: twice as many photons in the X-ray beam
3: increased radiographic density - CORRECT ANSWER 1, 2, and 3"
"The unit used to indicate the total quantity of X-ray expose is - CORRECT ANSWER
Millionsampere-seconds (mAs)"
"Of what material is the filament made? - CORRECT ANSWER Tungsten"
"Of what material is the target/anode made? - CORRECT ANSWER Tungsten"
"What is added to port to remove the long-wavelength radiation? - CORRECT ANSWER
aluminum filtration"
"What is the term used to describe the heating of a element to a hot temperature and the
expanding of the electrons in a atom? - CORRECT ANSWER Thermionic emission"
"The cathode side of the X-ray tube is - CORRECT ANSWER Negative"
"The anode side of the X-ray tube is - CORRECT ANSWER Positive"
"What type of motor is used to turn the anode inside the X-ray tube? - CORRECT ANSWER
Induction motor"
"The amount of detail or resolution seen in the radiographic image Is referred to - CORRECT
ANSWER Spatial resolution"
"The international systems of units (SI) unit for measuring the ABSORBED DOSE in the patient is
the - CORRECT ANSWER gray-t (Gy-t)"
"The SI measurement of radiation EXPOSURE in Air is the - CORRECT ANSWER gray-a (gy-a)"
"The SI unit used to report the EQUIVALENT DOSE, or occupational dose, to radiation workers in
the us is - CORRECT ANSWER Sievert (Sv)"
"According to the Bergonie-Tribondeau law, the following types of cells are most radiosensitive -
CORRECT ANSWER embryonic tissue cells"
"Short term effects of radiation are typically observed within - CORRECT ANSWER 3 months"
"Which of the following is considered an observable short term effect of radiation exposure -
CORRECT ANSWER erythema"
"Most X-ray tubes in use today have high speed rotation at - CORRECT ANSWER 10,000 rpm"
"The __________ is used to rotate the anode - CORRECT ANSWER Electromagnetic induction
motor"
"A "unseen image" is called? - CORRECT ANSWER Latent image"
"Medical term for throwing up - CORRECT ANSWER Emesis"
"Another term for heart attack? - CORRECT ANSWER myocardial infarction (MI)"
"Medical term for nosebleed - CORRECT ANSWER epistaxis"
"Disease transmission it is any medium that transports micro organisms examples include contaminated food water
drugs and blood - CORRECT ANSWER Vehicle"
"Disease transmission
it is spread by dust containing either Endospores or droplet nuclei - CORRECT ANSWER
Airborne contamination" "Disease transmission an object that has been in contact with pathogenic organisms called
examples it is commonly on xray table, up right Bucky, etc. - CORRECT ANSWER Fomites"
"Disease transmission
an arthropod examples insect, spider, or similar form. mosquitoes, fleas - CORRECT ANSWER
Vectors" "If a patient complains of sudden, intense pain under the sternum, you should assume until
proven otherwise that the patient might be having a - CORRECT ANSWER Heart attack"
"Syncope is another term for - CORRECT ANSWER Fainting"
"A sensation of dizziness in which the patient feels as if the room is moving or whirling is termed
CORRECT ANSWER Vertical"
"A transient ischemic attack is a mild, temporary form of a - CORRECT ANSWER Stroke"
"Redness of the skin is termed (___________). - CORRECT ANSWER erythema"
"A severe allergic reaction is termed _______ or ______ - CORRECT ANSWER Anaphylaxis or
anaphylaxis shock"
"The cerebrovascular accident (CVA) Is also called a - CORRECT ANSWER Stroke"
"The cuff and gauge for measuring blood pressure are called a(n): - CORRECT ANSWER
Sphygmomanometer" "The legal doctrine of respondent superior
the employer is liable for employees negligence acts that occur in the course of their work. -
CORRECT ANSWER Let the master respond"
"Malicious spreading usually refers to written information - CORRECT ANSWER Libel"
"Malicious spreading of information spread verbally - CORRECT ANSWER Slander"
"Consist of an unlawful touching of a person without consent - CORRECT ANSWER Battery"
"Maybe defined as the threat of touching in an injurious way - CORRECT ANSWER Assault"
"The unjustifiable detention of a person against his or her well - CORRECT ANSWER False
imprisonment"
"The diabetic patient who has taken insulin but no food may develop - CORRECT ANSWER
Hypoglycemia"
"What's a DNR order? - CORRECT ANSWER A do-not-resuscitate (DNR) order is an order not to
administer CPR in the event of cardiac or respiratory arrest."
"Below 70 kVp, about what percentage of the beam is bremss - CORRECT ANSWER 100%"
"the primary factor controlling radiographic CONTRAST and x-ray penetration is - CORRECT
ANSWER kVp"
"High contrast produced by using LOW kVp results in an image with: - CORRECT ANSWER a
Short scale of contrast"
"A doubling in kVp would result in four times more x-rays being emitted from the tube -
CORRECT ANSWER True"
"if the sid is increased or decreased, the density on the image is not changed - CORRECT
ANSWER false"
"The contrast on the viewing monitor is adjusted by controlling the window level. - CORRECT
ANSWER false"
"The SHARPNESS in the radiographic image is referred to as spatial resolution - CORRECT
ANSWER true"
"increased quantum mottle will result in increased spatial resolution - CORRECT ANSWER
false"
"Radiation produced by the photoelectric effect is called: - CORRECT ANSWER secondary
radiation"
"The majority of photons that are scattered will scatter in what direction - CORRECT ANSWER
in a more forward direction"
"The principal source of scatter radiation is the: - CORRECT ANSWER patient"
"A grid is used when the body part become larger than - CORRECT ANSWER 10 to 12 cm"
"The quality control test of the collimator field and x-ray field must show that the two field are
within 2% of the SID - CORRECT ANSWER True"
"as the kVp is increased, the Compton effect is increased - CORRECT ANSWER True"
"As the kVp is increased, the photoelectric effect is increased - CORRECT ANSWER False"
"The production of scatter results in fog on the radiograph - CORRECT ANSWER true"
"Electrons that are ejected out of atoms. Photon is absorbed. what effect is this - CORRECT
ANSWER Photoelectric Effect"
"Electrons are NOT ejected out of atoms. Incident photon is absorbed. A new photon of lower
frequency is emitted, this effect is called - CORRECT ANSWER Compton Effect"
"The minimum standard lead equivalency for the aprons should be - CORRECT ANSWER 0.
mm"
"The minimum standard of lead equivalent for protective gloves is - CORRECT ANSWER 0.
mm"
"Radiographer perform this quality check every? - CORRECT ANSWER 6 months"
According to the Bergonie Tribondeau law, which of the following types of cells are most
radiosensitive? - CORRECT ANSWER Embryonic tissue cells"
"Which of the following changes will decrease patient dose?
- Using a faster speed class imaging system
- Increasing the kVp using the 15% rule, while decreasing the mAs to compensate
3. Increase the grid ration to a 16:1 ratio - CORRECT ANSWER 1 and 2 only"
"When radiation exposure occurs during pregnancy, the greater risk of birth defect occur when the exposure:
- Exceeds 5 rad to the uterus
- Occurs within the first trimester of pregnancy
3. Occurs within the third trimester of pregnancy - CORRECT ANSWER 1 and 2 only"
"Which of the following functions involve the autotransformer? - CORRECT ANSWER kVp
selection"
"What is the IR that is used for computed radiography? - CORRECT ANSWER Photostimulable
Phosphor (PSP) Plate"
"Nearly all new x-ray machines manufactured today use _________________ generators -
CORRECT ANSWER High-frequency"
"The target of the x-ray tube is made of? - CORRECT ANSWER Tungsten"
"What is the proper method for storing unopened boxes of x-ray film? - CORRECT ANSWER
Standing on edge"
"Which of the following describe the action of the developer in an automatic film processor? -
CORRECT ANSWER Changes the exposed silver halide crystals into black, metallic silver"
"During digital image processing, electronic masking should not be used to replace: - CORRECT
ANSWER Proper radiographic collimation"
"Which of the following is not a component of a compound radiography plate reader? -
CORRECT ANSWER Developing solution"
"What conditions are most important for optimum viewing of radiographic images? - CORRECT
ANSWER Low room light level"
"Marks, exposures, or images on a radiograph that are not a part of the intended image are
called: - CORRECT ANSWER Artifacts"
"If the amount of irradiated tissue increases, what happens to scatter radiation fog? - CORRECT
ANSWER Scatter radiation for increases"
"The most effective and practical way to reduce scatter radiation for on a radiograph is to: -
CORRECT ANSWER Use a grid or bucky"
"As a general rule, a grid should be employed when the part thickness is greater than: -
CORRECT ANSWER 12 cm"
"Technique charts are based on patient part measurements obtained using an x-ray caliper and
are expressed as: - CORRECT ANSWER Thickness in centimeters"
"Which of the following will result in a screen or film image with low contrast? - CORRECT
ANSWER IR exposure with a kVp less than needed for the
particular anatomic structures."
"When viewing a digital image on a monitor, how do you determine if the proper mAs was
selected? - CORRECT ANSWER Evaluate the exposure index value"
"Which of the following will result in an image with poor spatial resolution? - CORRECT
ANSWER Patient motion"
"Which of the following will result in an image with excessive magnification of image structures?
CORRECT ANSWER IR exposure at an OID greater than needed for the
particular anatomic structures." "Which of the following will result in an image with excessive distortion of anatomic structures?
CORRECT ANSWER Improper central ray angulation for the selected
radiographic projection" "Poor film or screen contact is seen on a radiograph as a decrease in what radiographic quality
factor? - CORRECT ANSWER Recorded detail or Spatial Resolution"
"Which screen film image artifact looks like lightning? - CORRECT ANSWER Static artifact"
"Which of the following would be a violation of patient confidentiality? - CORRECT ANSWER A
limited operator talks to his or her friend during lunch about a patient's imaging procedure."
“Roentgen discovered x-rays while working with a _____ tube? - CORRECT ANSWER Crookes"
"An "electron cloud" surrounding the filament of the cathode is referred to as a - CORRECT
ANSWER Space charge"
"Free electrons of X-ray production come from the - CORRECT ANSWER Filament"
"The creation of the space charge in the X-ray tube produces: - CORRECT ANSWER thermionic
emission"
"The majority of photons in the X-ray beam are created by which process? - CORRECT
ANSWER Bremsstrahlung interactions"
"More than 99% of the energy of the electron stream is converted into: - CORRECT ANSWER
heat"
"X-ray tubes rotate at a standard speed of about ______ during exposure - CORRECT ANSWER
3600 rpm" "The absorption of an x-ray beam is called?
(the patient is the primary source of scatter) - CORRECT ANSWER Attenuation"
"Occurs at energy levels throughout the diagnostic xray range of 40 to 125 kVp - CORRECT
ANSWER Compton scatter"
"Occurs when an xray photon collides with an inner shell orbital electron of an atom. the photons
energy is absorbed into the process of rejecting the electron - CORRECT ANSWER
Photoelectric Effect" "Often occurs when an infectious individual coughs, sneeze, speaks, or sings I am particles are
suspended in the air - CORRECT ANSWER Droplet contamination"
"The first route is by means of direct contact this transition mode touched by infected person in
such a manner that the organisms are placed in ________ contact with susceptible host -
CORRECT ANSWER Direct contact"
"The hepatitis B virus is spread through contact with - CORRECT ANSWER Contaminated
blood, blood products" "These types of hepatitis that are spread through contact with food or water contaminated feces
or type - CORRECT ANSWER A and E"
"Vaccine is available to protect healthcare workers from infection by which hepatitis virus? -
CORRECT ANSWER B"
"The unit used to indicate the total QUANTITY of x-rays in an exposure is - CORRECT ANSWER
milliampere-seconds (mAs)" "which of the following will result in increased radiographic density?
- increased mAs
- increased exposure time
3. decresed source-image receptor distance (SID) - CORRECT ANSWER D. 1,2,3"
"The mass density of the body part is referred to as: - CORRECT ANSWER tissue density"
"the primary controller of radiographic DENSITY is - CORRECT ANSWER mAs"
"the difference in radiographic density between any two adjacent portions of the image is called :
- CORRECT ANSWER contrast"
"The most effective method of reducing scattered radiation fog on a radiographic is to -
CORRECT ANSWER use a grid or buck"
"As the kVp is increased, the photoelectric effect - CORRECT ANSWER is decreased"
"As the kVp is increased, the Compton effect - CORRECT ANSWER is increased"
"When a body part is dense, or has a greater atomic number, scatter radiation: - CORRECT
ANSWER is decreased"
"in the diagnostic range of kVp settings ( 50 to 100 kVp), the majority of scattered radiation will be
from which interaction with matter? - CORRECT ANSWER Compton effect"
"Total absorption of an x-ray photon by the atom of the body part is termed - CORRECT
ANSWER the photoelectric effect"
"Which type of x-ray photon interaction with the body is primarily responsible for the radiation
dose absorbed by the patient? - CORRECT ANSWER Photoelectric"
"What is the NCRP recommendation for the lead equivalency of aprons used for personnel
protection? - CORRECT ANSWER 0.5 mm"
"What is erythema, as it relates to radiation exposure? - CORRECT ANSWER Reddening of the
skin caused by high radiation dose"
"What is the guiding philosophy of radiation protection? - CORRECT ANSWER ALARA - as low
as reasonably achievable" "Which of the following statements reflects current scientific opinion regarding the effects of
diagnostic levels of ionizing radiation? - CORRECT ANSWER There is an increase risk of cancer,
leukemia, birth defects, and cataracts"
"At what kVp levels do Compton interactions occur? - CORRECT ANSWER They occur
throughout the diagnostic radiology kVp range"
"What is the recommendation for a hard-copy image that is mislabeled? - CORRECT ANSWER
A sticker with the correct information should be applied to the hard copy image."
"Which of the following will result in a screen or film image with low density? - CORRECT
ANSWER IR exposure with an mAs less than needed for the
particular anatomic structures"
