ARRT Registry Exam review rated 100% correct.

ARRT Registry Exam review rated 100% correct. What is the correct term used to describe an intravenous injection of a concentrated volume of contrast media? a. bolus b. infusion c. extravasation d. luminal - Answer a. bolus Which of the following methods utilizes a detector that captures x-ray energy and converts it into an electronic signal? a. indirect capture b. CCD c. cassette based radiography d. direct capture - Answer d. direct capture The energy of a characteristic x-ray photon created when an L shell electron fills a K shell vacancy in a tungsten atom will have which of the following energies? a. 69.5 keV b. 57.5 keV c. 91.5 keV d. 12 keV - Answer b. 57.5 keV The energy of characteristic photons is determined by the difference in binding energies between the two electron shells involved in the process, which in this question are K and L shells. 69.5 (K shell) minus 12 (L shell) equals 57.5. Identify the position that will place the positive contrast agent in the body of the stomach and pyloris during a double contrast upper GI exam? a. recumbent LPO b. supine c. recumbent RPO d. prone - Answer d. prone which position/projection will best demonstrate the broad aspect of the frontal air sinus? - Answer PA Which position will best demonstrate the right axillary portion of the ribs? - Answer RPO Which position will emphasize the mucosal lining of the medial wall of the descending colon during a lower GI exam? - Answer left lateral decubitus Which projection of the wrist will best demonstrate the interspaces of the carpal bone? - Answer AP An image is acquired with computed radiography using which of the following methods? a. a cassette that is electronically charged b. conventional film/screen processing ARRT Registry Exam review rated 100% correct. c. the use of a storage phosphor d. nonne of the above - Answer c. the use of a storage phosphor A transformer constructed with 10,00 primary turns and 2,500 secondary turns will yield an output voltage of _____ when being supplied with 210 volts. a. 2710 volts b. 52.5 volts c. 840 volts d. 525 volts - Answer b. 52.5 volts Which of the following circuit components is considered to be the source for kVp? a. step-up transformer b. autotransformer c. step-down transformer d. high voltage transformer - Answer b. autotransformer Which of the following meds is administered to a patient during an allergic reaction? a. Adenocard b. Intropin c. Lasix d. Decadron - Answer d. Decadron If the improper body part is selected from the exam menu, which of the following may result? a. there will be no image b. there may be image misinterpretation c. will exhibit proper contrast and density d. image sharpness will not be affected - Answer b. there may be image misinterpretation Which of the following combinations are needed in digital radiography system to produce an image? a. intensifying screen & TFT b. x-ray absorber & CCD c.. storage phosphor plate & CCD d. storage phosphor plate & TFT - Answer b. x-ray absorber & CCD Exposure latitude is also known as which of the following? a. dynamic range b. spatial resolution c. subject contrast d. characteristic response - Answer a. dynamic range All of the following components are within the glass/metal enclosure of the x-ray tube except... a. anode b. stators c. rotors ARRT Registry Exam review rated 100% correct. d. filament wires - Answer b. stators Universal precautions should be practiced on.. a. all isolation patients b. CCU patients c. pediatric patients d. All patients - Answer d. All patients What is the minimum source to skin distance allowed for a mobile fluoroscopic unit? - Answer 12 inches Pregnant technologists should not receive more than ___ rem for the duration of the pregnancy. a. 3 b. 0.5 c. 0.15 d. 2.5 - Answer b. 0.5 rem How much annual exposure can a 49 year old occupational worker receive? a. 490 mSv b. 290 mSv c. 50 mSv d. 75 mSv - Answer c. 50 mSv What is the primary purpose for the use of beam filtration? a. to reduce skin entrance exposure b. to modify subject contrast c. to limit the production of secondary radiation d. to offset variations in part thickness - Answer a. to reduce skin entrance exposure The reproducibility of exposures of a radiographic unit must not vary more than ____ % to be considered within acceptable limits. a. 2.5 b. 5 c. 10 d. 12.5 - Answer 5% Average body build comprising 50% of the population? - Answer Sthenic Below average body build comprising 35% of the population? - Answer Hyposthenic Extremely small body build comprising 10% of the population? - Answer Asthenic Above average or massive body build comprising 5% of the population? - Answer Hypersthenic What makes up the axial skeleton? - Answer toward the center or middle of the body- includes skull, hyoid, vertebral column, and thorax. ARRT Registry Exam review rated 100% correct. What makes up the appendicular skeleton? - Answer upper & lower extremities, the shoulder girdle & pelvic girdle The mastoid process is located at the level of... - Answer C1 The thyroid cartilage is located at the level of... - Answer C4-5 The vertebral prominens is located at the level of... - Answer C7 The sternal/jugular notch is located at the level of... - Answer T2-3 The sternal angle is located at the level of... - Answer T4-5 The inferior angle of the scapula is located at the level of... - Answer T7 The xiphoid tip is located at the level of... - Answer T10 The umbilicus is at the level of... - Answer L3-4 The iliac crest is at the level of... - Answer L4 The greater trochanter is at the level of... - Answer the pubic symphysis The lower costal margin is at the level of... - Answer L1-2 The ASIS is at the level of... - Answer S1 AP Axial Skull is also known as... - Answer "Townes" method PA Axial skull is also known as... - Answer Caldwell method In a PA Axial skull, where should the petrous ridges be seen? - Answer projected in the lower third of the orbits The CR for a PA axial skull? - Answer 15 degrees caudad, exiting the nasion The CR for an AP axial skull? - Answer 30 degrees caudad thru the foramen magnum to the OML Which line in perpendicular to the IR for a lateral skull? - Answer IPL The cassette-based digital image receptor uses which of the following as the image receptor? a. TFT b. PSP c. CCD d. none of the above - Answer b. PSP.