ASRT Exam 2
A fracture at the base of the first metacarpal is a ________ fracture. a. Bennett b. boxer c. Colles d. Smith
a
A malignant tumor arising from cartilage cells is a(n): a. chondrosarcoma. b. enchondroma. c. Ewing sarcoma. d. osteosarcoma.
a
According to government regulations, the x-ray beam must be within ________ degree(s) of perpendicular. a. 1 b. 2 c. 5 d. 10
a
All of the following affect tube output EXCEPT FOR: a. focal spot size. b. target material. c. filtration d.KVP
a
An increase in image contrast will result from increasing which of the following? a. OID b. SID c. kVp d. focal spot size
a
An increase in the difference between the atomic numbers or densities of adjacent tissues results in increased: a. subject contrast. b. distortion. c. spatial resolution. d. receptor exposure.
a
Filtration affects the primary beam by: a. increasing the average energy of the primary beam. b. decreasing the average energy of the primary beam. c. making the primary beam more penetrating. d. increasing the intensity of the primary beam.
a
Radiodermatitis is a local tissue effect of the ________ system. a. integumentary b. gastrointestinal c. hematopoietic d. central nervous
a
The MOST common subcutaneous sites for drug injections are the: a. abdomen and outer thighs. b. outer thighs and deltoid muscle. c. deltoid muscle and abdomen. d. gluteal folds and outer thighs.
a
The ________ of the syringe holds the medication for injection. a. barrel b. plunger c. bevel d. cap
a
The ________ x-ray interaction is MOST common in the human body. a. Compton b. characteristic c. photoelectric d. bremsstrahlung
a
The degree of needle angulation for venipuncture varies depending on the thickness of the patient's skin because: a. the thickness of the subcutaneous tissue varies from patient to patient. b. skin thicknesses are affected by age but not weight. c. the needle gauge varies to match tissue thickness. d. the skin of elderly patients can be much harder to puncture.
a
The hub of a needle is the: a. point where the needle attaches to the syringe. b. part that changes the pressure within the syringe. c. part that holds the medication. d. beveled portion of the needle.
a
The maximum annual exposure for the general population is ____ mSv/year, which is ____ that permissible for occupationally exposed individuals. a. 5; 1/10 b. 50; 1/20 c. 500; 1/20 d. 0.5; 1/10
a
The sampling frequency of an imaging system determines the: a. pixel size. b. bit depth. c. dynamic range. d. detective quantum efficiency.
a
The speed at which the anode rotates in the rotating anode x-ray tube can be: 1. 3000 rpm 2. 10 000 rpm 3. 15 000 rpm a. 1 and 2 b. 1 and 3 c. 2 and 3 d. 1, 2 and 3
a
Which imaging informatics system is a communication network of computers for image acquisition, display, and storage? a. picture archiving and communications system (PACS) b. radiology information system (RIS) c. health information system (HIS) d. electronic health record (EHR)
a
A benign tumor consisting of cartilage is a(n): a. chondrosarcoma. b. enchondroma. c. Ewing sarcoma. d. osteosarcoma.
b
A radiograph that demonstrates acceptable brightness in the middle of the image but shows gradually increasing brightness bilaterally further from the center represents a(n) ________ error. a. grid motion-failed b. upside-down focused grid c. incorrect grid ratio d. off-level grid
b
An acceptable exposure indicator was achieved using 72 kVp and 20 mAs. A setting of ________ mAs should be used to produce a comparable exposure indicator if the exposure is repeated using 83 kVp. a. 5 b. 10 c. 20 d. 40
b
An acceptable image is produced using 72 kVp, 5 mAs, no grid, and 40-inch SID. If the image is repeated using a 12:1 grid, ________ mAs would be needed to maintain receptor exposure. a. 30 b. 25 c. 20 d. 15
b
During the ________ stage of gestation, prenatal death can result from exposure to ionizing radiation. a. implantation b. preimplantation c. fetal d. organogenesis
b
Increasing the kVp from 70 to 80 will result in an increase in all of the following EXCEPT the ________ of ________ photons. a. quantity; bremsstrahlung b. quantity; characteristic c. quality; bremsstrahlung d. quality; characteristic
b
Subject contrast is affected by: a. mAs. b. barium. c. object-to-image distance (OID). d. all of the above.
b
The AP axial projection of the C-spine must demonstrate: a. levels C1 through C7. b. levels C3 through T2. c. levels C1 throughT1. d. the zygapophyseal joints between C1 and C2.
b
The device that is responsible for producing the high voltage necessary for x-ray production is the: a. battery. b. transformer. c. generator. d. motor.
b
The joint located between the distal and middle phalanx of toes 2-5 is the ________ joint. a. proximal interphalangeal b. distal interphalangeal c. metatarsophalangeal d. middle interphalangeal
b
The protective booth that the radiographer stands behind when making the x-ray exposure is a ________ barrier. a. primary b. secondary c. useful beam d. remnant radiation
b
What component is commonly replacing the vidicon camera found in older fluoroscopic units? a. plumbicon camera b. charge-coupled device c. image intensifier d. beam-splitting mirror
b
When applying a topical drug to a patient's skin, the health care provider should first: a. put on gloves. b. wash his or her hands. c. verify patient identification. d. explain the entire procedure to the patient
b
Which image display monitor works by accelerating electrons toward a fluorescent screen? a. liquid crystal display b. cathode ray tube c. thin-film transistor d. photostimulable phosphor plate
b
Which of the following bones are part of the orbit? a. frontal, maxilla, and temporal b. palatine, lacrimal, and maxilla c. frontal, sphenoid, and occipital d. mandible, maxilla, and frontal
b
Which of the following might cause an increase in quantum mottle? a. increasing the mAs b. decreasing the field size c. increasing the filament size d. decreasing the grid ratio
b
Which of the following radiographic evaluation criterion demonstrates NO tilt on a PA projection of the chest? a. sternal ends of the clavicles equidistant from the vertebral column b. T4 superimposed on the manubrium c. scapulae projected outside of the lung field d. 10 posterior ribs visible above diaphragm
b
Which projection of the chest is used to differentiate the lobes of the lungs, demonstrate the interlobar fissures, and localize pulmonary lesions? a. PA b. lateral c. PA oblique d. AP axial
b
A ________ is used to assess display monitors. a. pinhole camera b. line-pair test tool c. Society of Motion Picture and Television Engineers (SMPTE) test pattern d. dose area product (DAP) meter
c
A fracture of the distal radius with posterior displacement is a ________ fracture. a. Bennett b. boxer c. Colles d. Smith
c
A patient develops erythema in the shape of the exposure field following an interventional procedure. The legal doctrine MOST relevant to this injury would be: a. respondeat superior. b. borrowed servant. c. res ipsa loquitur. d. beneficence.
c
All of the following are quality control (QC) tests for photostimulable imaging detectors EXCEPT FOR: a. uniformity. b. spatial resolution. c. luminance. d. erasure thoroughness.
c
An examination requisition states that the next patient is blind. When providing instructions for a chest radiograph, the technologist should: a. speak loudly so the patient can hear. b. skip the explanation and try to complete the exam as quickly as possible. c. ask the patient how they would like to receive instructions. d. proceed with the examination, pantomiming instructions to the patient.
c
For a lateral projection of the cranium, the ________ line is perpendicular to the front edge of the image receptor. a. acanthiomeatal line (AML) b. glabellomeatal line (GML) c. infraorbitomeatal line (IOML) d. orbitomeatal line (OML)
c
How many phalanges are located in the foot? a. 5 b. 7 c. 14 d. 15
c
It would be inappropriate to refer to a patient who is over 65 years old as "geriatric" because: a. the person might not look 65 years old. b. geriatric refers to the study of aging, not populations. c. it can make the person feel alienated and disrespected. d. the label applies only to those who are older than 75 years.
c
MOST cell damage from ionizing radiation occurs when x-rays interact with: a. free radicals. b. DNA. c. water molecules. d. electrons.
c
The ________ measurement is an average calculated from the gonadal dose received by the entire population; the measurement is used to determine the effect of radiation exposure on future offspring. a. relative biologic effectiveness b. effective dose c. genetically significant dose d. lethal dose (LD) 50/30
c
The central ray enters the ________ when performing an AP axial projection of the toes. a. third metacarpophalangeal joint b. distal interphalangeal joint of the third phalanx c. third metatarsophalangeal joint d. head of the first metatarsal
c
The portion of the anode that stops the stream of electrons during x-ray production is the: a. rotor. b. stem. c. target. d. focusing cup.
c
When H2O gains an electron it becomes: a. HOH+. b. HOH=. c. HOH-. d. H*OH*.
c
Which of the following are properties of positive contrast agents? 1. composed of low-atomic number elements 2. increase x-ray attenuation 3. produce areas of decreased density on the image a. 1 and 2 b. 1 and 3 c. 2 and 3 d. 1, 2, and 3
c
Which of the following is NOT an advantage of beam restriction? a. reduced scatter radiation production b. need to irradiate less biologic material c. need for less total filtration
c
A double-contrast examination of the esophagus typically uses________ as the negative contrast medium. a. barium sulfate b. water-soluble iodinated contrast c. oxygen d. carbon dioxide crystals
d
A malignant primary tumor of bone is a(n): a. chondrosarcoma b. enchondroma c. metastasis d. osteosarcoma
d
A malignant tumor in the bone is a(n): a. chondrosarcoma. b. enchondroma. c. Ewing sarcoma. d. osteosarcoma.
d
A radiograph that demonstrates acceptable brightness along one side of the image but NOT on the opposite side represents a(n) ________ error. a. grid motion too slow b. upside-down focused grid c. incorrect grid ratio d. off-level grid
d
All of the following affect patient dose, EXCEPT for: a. inherent filtration. b. added filtration. c. source-to-image distance (SID). d. focal spot size.
d
All of the following are inappropriate sites for venipuncture EXCEPT FOR: a. arms on the side of a mastectomy. b. edematous areas. c. sites above an intravenous access device. d. the dorsal side of the wrist
d
An air-gap technique can be used in place of a grid in some instances because of: a. the inverse square law. b. anode heel effect. c. a heterogeneous beam. d. beam divergence.
d
For a PA projection of the chest, the central ray is adjusted parallel to _______ and enters at the level of ________. a. T7; the midcoronal plane b. T7; the midsagittal plane c. the midcoronal plane; T7 d. the midsagittal plane; T7
d
The AP axial oblique projections of the C-spine demonstrate the ___________ that are ___________ the image receptor. a. zygapophyseal joints; closest to b. zygapophyseal joints; farthest from c. intervertebral foramina; closest to d. intervertebral foramina; farthest from
d
The active layer of a direct flat panel detector converts: a. light to electrons. b. x-rays to light. c. electrons to light. d. x-rays to electrons.
d
The anode heel effect is most prevalent with a ________ SID and ________ receptor size. a. long; small b. long; large c. short; small d. short; large
d
The bony structure in which the pituitary sits is the ________, which is in the ________ bone. a. clivus; sphenoid b. cribriform plate; ethmoid c. sphenoid strut; ethmoid d. sella turcica; sphenoid
d
The kidneys are located in the: a. peritoneal cavity. b. anteroperitoneum. c. supraperitoneum. d. retroperitoneum.
d
The purpose of the rheostat in the x-ray circuitry is to: a. minimize electron repulsion. b. monitor tube current. c. alter anode rotation speed. d. adjust filament temperature.
d
The temporal mandibular joint (TMJ) is a ________ joint. a. fibrous suture b. fibrous hinge and gliding c. synovial suture d. synovial hinge and gliding
d
Types of gonadal shielding include all of the following EXCEPT: a. flat contact. b. shaped (contour) contact. c. shadow. d. Ferlic filter.
d
Which of the following are cranial bones? a. frontal, occipital, and mandible b. sphenoid, vomer, and temporal c. palatine, lacrimal, and occipital d. occipital, temporal, and parietal
d
Which of the following are important components in documenting drug administration? 1. time and date of the drug administration 2. patient's reaction to the medication 3. route of drug administration a. 1 and 2 b. 1 and 3 c. 2 and 3 d. 1, 2 and 3
d
Which of the following factors affects subject contrast? a. grids b. OID c. mAs d. filtration
d
Which of the following is a benign tumor arising from Schwann cells of the eighth cranial nerve? a. pituitary adenoma b. multiple myeloma c. osteoma d. acoustic neuroma
d
Which of the following is the correct circuitry sequence for incoming voltage in a high-frequency generator? a. transformer, inverter, capacitor, rectifier, capacitor, rectifier b. capacitor, transformer, rectifier, inverter, capacitor, rectifier c. inverter, rectifier, transformer, capacitor, rectifier, capacitor d. rectifier, capacitor, inverter, transformer, rectifier, capacitor
d
Which one of the following is NOT a feature of fluoroscopy equipment designed specifically to reduce the amount of scatter radiation striking personnel? a. a protective curtain b. a Bucky slot cover c collimation d. a cumulative timer
d
