LMRT ARRT Practice Exam

These questions are part of the practice quiz. Start practicing

• Free electrons for X-ray production are primarily derived from which component?
• As the kilovoltage peak (kVp) is increased, what happens to the photoelectric effect?
• What is the purpose of lead aprons in radiography?
• What is the medical term for a nosebleed?
• When the effective focal spot is smaller, how does it affect penumbra and spatial resolution?
• The capability of the anode to handle heat is called?
• Which type of radiation production constitutes the majority of the X-ray beam?
• At what standard speed do X-ray tubes typically rotate during exposure?
• Which effect occurs when an X-ray photon collides with an inner shell orbital electron?
• What organization was formed in 1969 to conduct accreditation for imaging programs?
• In which direction do the majority of scattered photons primarily scatter?
• What does ARRT stand for?
• X-ray equipment producing 70 kVp or more must have a total filtration of at least what amount?
• The degree of angulation of the X-ray tube target affects what aspect?
• What does mAs stand for in X-ray exposure settings?
• A decrease in Source-to-Image Distance (SID) will result in which of the following?
• What condition may develop in a diabetic patient who has taken insulin but has not eaten?
• Why is the anode of the X-ray tube rotated?
• What is the result of using low kVp in terms of image contrast?
• What is the name of the device used to measure blood pressure?
• What effect does the production of scatter radiation have on radiographs?
• Which of the following factors affects the exposure time needed for adequate imaging?
• What term describes the malicious sharing of false information verbally?
• What is a DNR order?
• What percentage of the beam is characteristic above 70 kVp?
• Which of the following factors primarily influences the level of scatter radiation on a radiograph?
• What does the term 'battery' refer to in legal terms?
• How often should radiographers perform their quality checks?
• What is the primary purpose of using a grid in radiography?
• What type of tube did Roentgen work with when he discovered x-rays?
• What is the primary source of scatter radiation during an x-ray procedure?
• What is a severe allergic reaction also known as?
• What happens during the Compton Effect?
• Which of the following best defines characteristic radiation?
• A patient presenting with abrupt weakness on one side of the body may be experiencing what condition?
• What is the outcome of reducing kVp in a radiographic procedure?
• The amount of detail seen in an X-ray image is referred to as what?
• If the source-to-image distance (SID) is increased or decreased, how is the density on the image affected?
• What does an increase in milliampere-seconds (mAs) do to the radiograph?
• What is the term used for the misrepresentation in the size or shape of the structure being examined?
• What is another term for syncope?
• Which component affects the quality of imaging by adjusting the amount of radiation exposure?
• Which of the following factors primarily affects the amount of scatter radiation produced?
• What is one possible name for a severe allergic reaction?
• What aspect of radiographic quality does spatial resolution affect?
• What term is used to refer to the sharpness in the radiographic image?
• What type of motor is utilized to turn the anode inside the X-ray tube?
• In digital imaging, spatial resolution refers to what aspect of the recorded images?
• Malicious spreading of false information in written form is referred to as what?
• What is the term for redness of the skin?
• What is the effect of a body's density and atomic number on scatter radiation?
• What percentage of the x-ray beam is characteristic radiation when created above 70 kVp?
• Every X-ray exposure will contain photons produced from which interactions?
• What is the primary factor controlling radiographic contrast and x-ray penetration?
• What term describes the undesirable increase in patient exposure due to high mA settings?
• What is the purpose of high-speed rotation in X-ray tubes?
• As the kVp is increased, what is the effect on the photoelectric effect?
• What is the term for the difference in radiographic density between any two adjacent portions of the image?
• What allows modern X-ray tubes to achieve high speeds during operation?
• What is the process of converting Alternating Current (AC) into Direct Current (DC) called?
• Which of the following changes is likely to decrease patient dose during an X-ray procedure?
• What unit is used to indicate the total quantity of x-rays in an exposure?
• Identifying skin redness is often a sign of what?
• What is the characteristic charge of the cathode side of an X-ray tube?
• What type of scatter occurs at energy levels throughout the diagnostic X-ray range of 40 to 125 kVp?
• What is the medical term for a heart attack?
• What is the SI measurement of radiation exposure in air?
• What is the term for the motion of the patient that leads to decreased detail during the exposure?
• What is the primary mode of transmission for infections spread by direct contact?
• Which of the following best defines "Vectors" in the context of disease transmission?
• What is the type of radiation produced by the photoelectric effect called?
• In an X-ray tube, the flow of current is measured in which unit?
• What is the high-speed rotation rate of most modern X-ray tubes?
• How does increased quantum mottle affect spatial resolution?
• What is the medical term for the act of vomiting?
• What term refers to the "electron cloud" surrounding the filament of the cathode?
• As the kVp is increased, what happens to the Compton effect?
• What is the principal means of controlling involuntary motion during radiographic procedures?
• The clarity or sharpness of a radiographic image is referred to as what?
• Which condition can be characterized by a feeling of dizziness that makes the individual feel as if they are moving?
• In radiography, which of the following relates to image sharpness?
• What is the phenomenon called when electrons are ejected out of atoms after absorbing a photon?
• Short-term effects of radiation exposure are typically observed within what time frame?
• What type of radiation is described as the radiation that exits the x-ray tube?
• If a patient reports sudden, intense pain under the sternum, what condition should be suspected?
• Which of the following is a method to control distortion in radiographic images?
• What percentage of the beam is bremsstrahlung above 70 kVp?
• More than 99% of the energy produced by the electron stream in an X-ray tube is converted into which form?
• Which of the following will result in increased radiographic density?
• Which organization is recognized as the oldest professional radiation organization established in 1920?
• What is the required minimum standard of lead equivalency for protective gloves?
• Which hepatitis virus has a vaccine available for healthcare workers?
• Which of the following is considered an observable short-term effect of radiation exposure?
• Which effect describes the energy transfer from a photon to an electron that results in ejection from the atom?
• What term describes the heating of an element to a high temperature, resulting in the expansion of electrons?
• The legal doctrine that holds an employer liable for an employee's negligent acts is known as what?
• How does fog affect radiographic quality?
• Which effect is responsible for increased energy of emitted photons compared to absorbed ones?
• What effect does the anode heel effect have on the X-ray beam?
• What process primarily creates the majority of photons in an X-ray beam?
• Image sharpness is primarily determined by which factor?
• Compton scatter primarily involves which of the following interactions?
• What is added to the port of an X-ray tube to help remove long-wavelength radiation?
• What is the SI unit used for measuring absorbed dose in patients?
• Which component is responsible for rotating the anode in an X-ray tube?
• What device is used to eliminate long-wavelength radiation from the primary X-ray beam?
• What does the photoelectric effect primarily involve?
• What material is the filament in an X-ray tube typically made from?
• What is the principal source of scatter radiation during imaging procedures?
• What is the best approach for minimizing fog on a radiographic image?
• What is the term used to describe geometric blur or focal spot blur in radiography?
• Which term refers to the decrease in the number of photons in an x-ray beam as it passes through matter?
• In radiation safety, why is knowing the monthly dose limit important for pregnant workers?
• What is produced when using high kVp resulting in low contrast?
• To improve spatial resolution when a large Object-to-Image Distance (OID) is present, which methods are effective?
• What effect occurs when an incident photon interacts with an atom but does not have enough energy to eject an electron?
• As the kVp is increased, what happens to the Compton effect?
• According to the Bergonie-Tribondeau law, which type of cells are the most radiosensitive?
• The anode heel effect is most pronounced when using which size of imaging receptor (IR)?
• How is the x-ray beam that exits on the opposite side of the patient referred to?
• Which unit defines the total quantity of X-ray exposure?
• What medical term describes a sensation of dizziness where the room appears to move?
• In the diagnostic range of kVp settings (50 to 100 kVp), which interaction with matter produces the majority of scattered radiation?
• How can increased source-image receptor distance (SID) affect equipment and patient exposure?
• Which organization was established to set standards and conduct examinations in radiology?
• What are the two typical rotation speeds for the anode in an X-ray tube?
• What does the German term "Bremsstrahlung" refer to?
• How is the hepatitis B virus primarily transmitted?
• What type of radiation is considered the radiation that actually contributes to the image?
• Which factor influences the effectiveness of lead aprons in radiation protection?
• What type of radiation does lead effectively shield against?
• What is the most effective method for reducing scattered radiation fog on a radiograph?
• What term is used to describe a grainy or mottled image in radiology?
• A legal term defined as the threat of touching in an injurious manner is called what?
• If the milliamperage (mA) is doubled, what results can be expected?
• Which SI unit is used to report the equivalent dose for radiation workers?
• What term describes the loss of intensity of the x-ray beam as it passes through the patient?
• What material is commonly used for the target/anode in an X-ray tube?
• Which of the following best describes a situation when the photoelectric effect is more likely to occur?
• Which effect occurs when x-ray photons are scattered and lose energy?
• What type of radiation is created when an electron knocks a k-shell electron out of its orbit?
• What is referred to as the "fuzzy" un-sharpness at the edges of structures or body parts in radiography?
• Above 70 kVp, what percentage of X-ray photons are produced by the bremsstrahlung process?
• What is referred to as the unjustifiable detention of a person against their will?
• Which type of radiation is primarily responsible for patient dose during diagnostic imaging?
• In what scenario might a radiographer require gloves with 0.25 mm lead equivalency?
• Why is it important for radiographers to conduct quality checks every 6 months?
• What is the factor that controls the penetrating power of the X-ray beam?
• What is the percentage of bremsstrahlung interaction in the X-ray beam below 70 kVp?
• What is the term for generalized unwanted exposure on a radiographic image?
• What is the monthly equivalent dose limit for a pregnant radiation worker?
• What term is used to refer to the mass density of a body part being imaged?
• What can be done to improve image contrast during radiography?
• What mode of disease transmission is spread by dust containing endospores or droplet nuclei?
• Which of the following terms describes the transmission of disease through contaminated food or water?
• What term is used to describe any medium that transports microorganisms?
• How much aluminum filtration is required in an X-ray tube to meet government standards?
• A doubling in kilovoltage peak (kVp) results in how many times more x-rays being emitted from the tube?
• What is another term commonly used for a cerebrovascular accident?
• What is the primary controller of radiographic density?
• Which interaction with matter predominantly contributes to scatter radiation in diagnostic imaging?
• According to quality control standards, how close must the collimator field and x-ray field be to each other at the SID?
• What does a transient ischemic attack represent?
• What is the primary concern when dealing with fomites in a healthcare setting?
• Which adjustment would NOT directly affect the quality of an X-ray image?
• What advantage does the high-speed rotation (10,000 rpm) of the anode provide?
• How does the use of a grid affect patient exposure during an imaging procedure?
• At what percentage of the beam does bremss radiation typically occur below 70 kVp?
• What does the "characteristic" portion of the X-ray beam refer to?
• What is the annual effective dose limit for a whole body non-pregnant worker over the age of 18?
• If the milliampere-seconds (mAs) is doubled, what will happen to the dose to the patient?
• What is the minimum standard lead equivalency for protective aprons used in radiography?
• What is the characteristic charge of the anode side of an X-ray tube?
• How is the contrast on the viewing monitor adjusted?
• What is referred to as an object that has been in contact with pathogenic organisms?
• What is the term for the total absorption of an x-ray photon by an atom of the body part?
• Which types of hepatitis are transmitted through contaminated food or water?
• What type of contamination often occurs when an infectious person coughs or sneezes?
• A dual-focus X-ray tube is described by which characteristics?
• A grid is typically used when the body part exceeds what size?