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ARRT Practice
| Question | Answer |
|---|---|
| Centering for oblique projections of the chest should be directed to which level? A) T9-10 B) T5 C) T7 D) T12 | C) T7 |
| Which of the following will have the greatest absorbed dose? A) soft tissue B) bone C) fat D) air | B) Bone |
| Permanent filtration that is part of the x-ray tube is: A) added plus inherent filtration B) added filtration C) inherent filtration D) total filtration | C) Inherent Filtration |
| A patient presents to the ER with trauma to the humerus. A humerus exam is ordered. The patient complains of pain more towards the shoulder. How should the images be centered? A) Glenohumeral joint B) closer to the elbow C) to the mid humerus | D) To the mid humerus |
| An unnecessary fluoroscopic procedure on a female in her first trimester could result in: A) gestational diabetes B) blood disorders C) fetal death D) congenital anomalies | D) Congenital Anomalies |
| Which body type is described as having a wider transverse dimension of of the chest with shorter vertical dimensions? A) asthenic B) hyposthenic C) hypersthenic D) sthenic | C) Hypersthenic |
| What anatomy is located on the posterolateral surface of the proximal femur? A) lesser trochanter B) greater tubercle C) greater trochanter D) lesser tubercle | C) Greater Trochanter |
| When neither the greater tubercle nor the lesser tubercle is visible on the humeral head, what position is the arm in? A) internal rotation B) external rotation C) neutral D) anatomical | C) Neutral |
| Which post processing feature allows alteration of image contrast? A) window depth B) window level C) windowing D) window width | D) Window Width |
| The space from the center of one pixel to the center of the adjacent pixel is: A) bit depth B) matrix C) pixel pitch D) pixel density | C) Pixel Pitch |
| Which of the following will compensate for tissue thickness, tissue density, and pathologies present? A) AEC B) variable kVp technique chart C) fixed kVp technique chart D) look up table | A) AEC |
| Which of the following positions would be referred to best image the AC joints? A) apply weights to the patient B) prone C) supine D) erect | D) Erect |
| The theory that certain cellular qualities influence radiosensitivity? A) Direct Effect B) Law of Bergonie and Tribondeau C) LET D) Linear nonthreshold | B) Law of Bergonie and Tribondeau |
| All of the following could serve as a means to reduce patient exposure except: A) patient restraint B) faster screen speed C) increased collimation D) lower grid ratio | A) Patient Restraint |
| How much are the knees flexed when performing the Merchant Method? A) 60 degrees B) 20 degrees C) 0 degrees D) 40 degrees | D) 40 degrees |
| Where is the CR directed for a mediolateral knee? A) 1" inferior to the medial malleolus B) medial malleolus C) lateral malleolus D) 1" inferior and posterior to the medial malleolus | B) Medial Malleolus |
| Which of the following improves grid efficiency? A) compressing the part thickness B) increasing the SID C) using the lower ratio grid D) using a higher ratio grid | D) Using a higher ratio grid |
| Which of the following specialty views demonstrate the patella in profile? A) Holmblad method B) Camp Coventry method C) weight-bearing AP D) Hughston Method | D) Hughston Method |
| Application of technique charts should be considered primarily: A) for reproducibility B) to extend the life of the x-ray tube C) to improve department efficiency D) to help minimize patient dose | D) to help minimize patient dose |
| Which anatomic structures unite to form the trochlear notch? A) coracoid process and olecranon process B) semilunar arch C) olecranon process and trochlear notch D) coronoid process and olecranon process | D) Coronoid Process and Olecranon Process |
| An image viewed on the computer monitor is referred to as: A) final copy B) hard copy C) digital copy D) soft copy | D) Soft Copy |
| What is the area of the anode that is struck by electrons? A) dual focal spot B) actual focal spot C) focal spot D) effective focal spot | B) Actual Focal Spot |
| Which of the following is vital to cell life and reproduction? A) ribosomes B) proteins C) amino acids D) DNA | D) DNA |
| Which of the following would be the best technical factors to consider for the dorsoplantar foot? A) 70 kVp and table Bucky B) 60 kVp and table Bucky C) 60 kVp and tabletop D) 50 kVp and tabletop | C) 60 kVp and tabletop |
| If a radiographer needs to reduce the density of an image by one half, but is unable to change the mAs, what change must happen? A) decrease the kVp by 15% B) increase the kVp by 30 % C) decrease the kVp by 30% D) increase the kVp by 15% | A) Decrease kVp by 15% |
| The plantodorsal axial calcaneus requires which of the following tube angles? A) 30 degrees cephalic B) 40 degrees cephalic C) 20 degrees cephalic D) 10 degrees cephalic | B) 40 degrees cephalic |
| The knee flexion requirement for a mediolateral projection of the knee is: A) 20 degrees B) 45 degrees lateral C) 60 degrees D) 55 degrees | A) 20 degrees |
| Which of the following will function to change mechanical energy into electrical energy? A) generator B) rectifier C) focal spot D) autotransformer | A) Generator |
| A patient with a suspected right hemothorax is unable to stand. The patient should be placed in which of the following positions to image this condition? A) AP Chest B) left lateral decubitus C) dorsal decubitus D) right lateral decubitus | D) Right Lateral Decubitus |
| The amount of work performed by moving electrical charges is: A) ohms B) amperage C) voltage D) transformer | C) Voltage |
| An SMPTE pattern test is used to evaluate: A) monitor performance B) film screen resolution C) film screen contact D) spatial resolution | A) Monitor Performance |
| Which of the following is the preferred target material for the anode? A) tungsten B) molybdenum C) rhodium D) copper | A) Tungsten |
| The technologist should make a note in the patient's charter all of the following except: A) patient reaction to contrast injection B) patient's dietary wishes C) alteration of patient condition while under the care of the technologist | B) Patient's Dietary Wishes |
| If a phantom image is noted on a subsequent image taken with the same imaging plate, this occurrence was the result of: A) insufficient erasing of the previous image B) scatter radiation C) patient motion D) double exposure | A) Insufficient Erasing of the Previous Image |
| Which of the following could be used to evaluate the femorotibial joint? A) Merchant method B) Settefast Method C) Holmblad Method D) weight-bearing AP | D) Weight-Bearing AP |
| "LUT" stands for: A) Look Up Table B) Linear Underexposed Table C) Linear Exposuure Table D) Linear Energy Transfer | A) Look Up Table |
| Early effects of radiation exposure can result from: A) low doses accumulated over a period of time B) background radiation C) occupato exposure D) a single high dose | D) A Single High Dose |
| Size distortion is a result of: A) increased OID B) decreased OID C) decreased SID D) angulation of the tube | A) Increased OID |
| The sesamoid bones in the foot are located: A) at the 1st distal interphalangeal joint B) at the 1st. proximal interphalangeal joint C) at the 1st interphalangeal joint D) at the 1st metatarsophalangeal joint | D) at the 1sr metatarsal phalangeal joint |
| The apparancee of densities arranged int stripes across the image is referred to as: A) scratches B) ghosting C) banding D) dead pixels | C) banding |
| Which of the following control panel settings will determine the quality and length of exposure? A )mA B) kVp C) time D) mAs | D) mAs |
| CR skates are subject to _________ when not in use. A) artifacts B) fog C) ghosting D) banding | B) Fog |
| The primary disadvantage of performing chest images with the AP projection rather than the PA is: A) distortion of the bony thorax B) increased radiation dose to the lungs C) increased magnification of the heart | C) Increased Magnification of the Heart |
| Which of the following would be a positive contrast agent with a high atomic number administered to a patient? A) air B) radiopaque contrast C) radiolucent contrast D) transparent contrast | B) radiopaque contrast |
| If ghosting occurs, which of the following should be performed? A) increase kVp B) remove the IP from use C) clean the IP D) a secondary erasure | D) a secondary erasure |
| A patient is experiencing insulin shock, but is still conscious. Which of the following should be administered? A) protein bar B) insulin C) liquid with sugar D) salty food | C) liquid with sugar |
| Which of the following is/are not a means of reducing patient dose? A) grids B) decreasing mAs C) increased collimation D) increasing SID | A) Grids |
| The required thickness of a secondary barrier is: A) 1/32nd inch lead B) 1/16th inch lead C) 1/8 inch lead D) 1 inch lead | A) 1/32 inch lead |
| When positioning the PA Chest, which maneuver will remove the scapulae from the lung field? A) having the patient as close as possible to the upright Bucky B) placing the patient's hands on their hips C) rolling the patient's shoulders forward | C) rolling the patient's shoulders forward |
| Increased collimation will result in all of the following except: A) potential higher contrast B) a smaller field size C) decreased dose D) increased dose | D) Increased dose |
| Where should the CR be directed for AC joints? A) jugular notch with 40" SID B) 1" superior to jugular notch with 72" SID C) jugular notch with 72" SID D) 1" superior to jugular notch with 40" SID | B) 1" superior to jugular notch with 72" SID |
| Which anatomy accepts the coronoid process with the arm in flexion? A) olecranon fossa B) coronoid fossa C) capitulum D) radial fossa | B) coronoid fossa |
| The amount of distance between the source and the IR is known as: A) source-to-image distance B) source-to-object distance C) exposure index D) object-to-image distance | A) source-to-image distance |
| Which of the following describes good body mechanics? A) keep chest and shoulders down B) keep feet close together C) keep weight equally distributed on both feet D) keep knees straight and unbent | C) keep weight equally distributed on both feet |
| Which portion of the rib sits more superior? A) vertebral end B) sternal end C) anterior end D) axillary margin | A) vertebral end |
| Which of the following indicates rotation on a PA chest? A) how much of the apices are visible above the clavicles B) asymmetrical appearance of the sternoclavicular joints C) vertical appearance of clavicles D) scapulae in the lung field | B) asymmetrical appearance of the sternoclavicular joints |
| How are shielding accessories such as lead aprons best inspected? A) with fluoroscopy B) with radiography C) visually D) should just be recycled every 3 years | A) with fluoroscopy |
| A patient is suspected to have a left pneumothorax. You have orders to image the patient to acquire an air-fluid level. Which position would best demonstrate this pathology? A) right lateral decubitus B) ventral decubitus C) left lateral decubitus | A) right lateral decubitus |
| A legal doctrine that states that the cause of the medical negligence is obvious is: A) OSHA B) respondeat superior C) medical negligence D) res ispa loquitur | D) res ispa loquitur |
| All of the following require technical factors to be decreased except: A) pediatric patients B) presence of free fluid in a cavity C) presence of free air in a cavity D) small adult patients | B) presence of free fluid in a cavity |
| Which of the following projections will demonstrate anterior to posterior displacement of the anatomy of the shoulder joint with a patient under spinal precautions? A) transthoracic B) AP with lateral rotation C) AP with neutral rotation D) Scapular Y | A) transthoracic |
| Which of the following describes the correct approach to imaging the hand? A) image acquired with a grid and kVp at 60 B) image acquired with the Bucky and kVp at 50 C) image acquired on the tabletop and kVp at 60 | C) image acquired on the tabletop and kVp at 60 |
| The computer that serves as the location for post-processing changes to be made is the: A) control panel B) flat panel C) workstation D) PACS | C) workstation |
| Which technique chart will use a constant mAs regardless of part thickness? A) variable kVp technique chart B) straight time exposure C) AEC D) fixed kVp chart | A) variable kVp technique chart |
| The lower rib margin corresponds to which anatomic level? A) T7 B) L2/3 C) T9/10 D) T2/3 | B) L2/3 |
| Which of the following is the most important means of keeping patient dose to a minimum? A) using automatic exposure control B) altering the focal spot size C) using a high kVp D) beam restriction | D) beam restriction |
| How is a true lateral humerus determined to be positioned properly? A) humeral epicondylar plane is 45 degrees medially B) humeral epicondylar plane is perpendicular to IR C) humeral epicondylar plane is parallel to IR | B) humeral epicondylar plane is perpendicular to IR |
| Which radiation protection monitor provides immediate readouts and accurately records dose? A) pocket dosimeter B) TLD device C) film badge D) OSL dosimeter | A) pocket dosimeter |
| Production of x-rays happens in result of electrons interacting with the tungsten target through which two interactions? A) Bremsstrahlung and Compton B) Classical and Photoelectric C) Bremsstrahlung and Characteristic D) Compton and Photoelectric | C) Bremsstrahlung and Characteristic |
| The 1st metacarpal articulates with: A) scaphoid B) trapezium C) triquetrum D) trapezoid | B) trapezium |
| Which tissue type will absorb the greatest amount of radiation? A) soft tissue B) air C) bone D) muscle | C) bone |
| A program that encompasses all aspects of quality from customer service, image interpretation and diagnosis, to distribution of patient report is: A) quality assurance B) quality control C) RIS D) PACS | A) quality assurance |
| The relationship of the height of a grid's lead strips to the distance between the lead strips is: A) grid frequency B) grid cutoff C)grid ratio D) grid factor | C)grid ratio |
| An alternate name for capitate is: A) cuneiform B) navicular C) os magnum D) os calcis | C) os magnum |
| The recommended lead equivalency for gonadal shielding when kVp values are less than 100 is: A) 0.25 mm B) 0.50 mm C) 0.75 mm D) 1 mm | A) 0.25 mm |
| Which of the following is an example of a fomite? A) animal with rabies B) mosquito C) tick D) positioning sponge | D) positioning sponge |
| Lead glass in the control booth must contain: A) 1/16" lead equivalent B) 1/32" lead equivalent C) 1/2" lead equivalent D) 1.5 mm lead equivalent | D) 1.5 mm lead equivalent |
| Patients imaged with a known abdominal ascites should be imaged with which of the following adjustments made to AEC? A) use the plus density setting B) decrease in kVp C) increase in kVp D) use the minus density setting | A) use the plus density setting |
| The smallest component of a matrix is a: A) matrix B) bit C) pixel D) voxel | C) pixel |
| When transporting an ambulatory patient, where should the technologist position themselves? A) either in front of or behind the patient B) in front of the patient C) behind the patient D) beside the patient | D) beside the patient |
| The relaxation phase of the heart is: A) blood pressure B) systole C) diastole D) cardiogenic shock | C) diastole |
| What is the annual does limit exposure to the eyes for a radiographer? A) 5 rem B) 1 rem C) 15 rem D) 10 rem | C) 15 rem |
| The most important form of medical asepsis practiced by a healthcare worker is: A) HIPPA B) Surgical Scrub C) Use of hydrogen peroxide D) handwashing | D) handwashing |
| An exposure index reading that falls below the specified range indicates: A) will be optimal with postprocessing B) underexposure C) overexposure D) high SNR | B) underexposure |
| The condition in which air fills into the pleural cavity potentially resulting in a collapsed lung is: A) emphysema B) pneumothorax C) pleural effusion D) pneumoperitoneum | B) pneumothorax |
| When imaging the chest with an AP projection, which bony landmark will assist with proper placement of the CR? A) Xiphoid Tip B) Jugular Notch C) Lower Rib Margin D) Inferior Angle of Scapula | B) Jugular Notch |
| The margin of error that exists within an exposure range present in CR and DR is: A) dynamic range B) exposure index C) exposure latitude D) post processing | C) exposure latitude |
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Billie901
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