ARRT registry exam graded A UPDATE NEW 100% correct

ARRT registry exam graded A UPDATE NEW What is the correct term used to describe an intravenous injection of a concentratedvolume 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 andconverts it into an electronic signal? a. indirect captureb. 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 Kshell 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 thestomach and pyloris during a double contrast upper GI exam? a. recumbent LPOb. supine c. recumbent RPO d. prone - Answer d. prone which position/projection will best demonstrate the broad aspect of the frontal airsinus? - Answer PA Which position will best demonstrate the right axillary portion of the ribs? - AnswerRPO Which position will emphasize the mucosal lining of the medial wall of thedescending colon during a lower GI exam? - A