Final ARRT Registry Exam Review |Question and Answer| 2024

Final ARRT Registry Exam Review |Question and Answer| 2024 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 *Ans* 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 *Ans* 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 *Ans* 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 *Ans* d. prone which position/projection will best demonstrate the broad aspect of the frontal air sinus? *Ans* PA Which position will best demonstrate the right axillary portion of the ribs? *Ans* RPO Which position will emphasize the mucosal lining of the medial wall of the descending colon during a lower GI exam? *Ans* left lateral decubitus Which projection of the wrist will best demonstrate the interspaces of the carpal bone? *Ans* 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 c. the use of a storage phosphor d. nonne of the above *Ans* 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 *Ans* 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 *Ans* b. autotransformer Which of the following meds is administered to a patient during an allergic