ASRT Test Review 1 Answered Questions | Already Passed | 100 % Correct Answers

The graphic representation of pixel values best defines which of the following terms? Ans: histogram The radiation fog displayed on images is MOST likely caused by a ___________x-ray interaction. Ans: Compton The low-voltage side of the main x-ray circuit is on the: Ans: primary side of the step-up transformer. Which of the following image detector materials is used in conjunction with a scintillator? Ans: amorphous silicon Which of the following is NOT a means of sterilizing items or instruments that can be reused? Dry heat, chemical sterilization, autoclaving, freezing Ans: freezing After long periods of rest (either recumbent or sitting), a patient experiences dizziness upon standing due to: Ans: orthostatic hypotension. What is TRUE regarding a fixed kVp chart? Ans: MAs is increased by a factor of 2 for every 4-cm increase in part thickness. All of the following are indications for performing examinations on the lower urinary tract EXCEPT: recurrent lower urinary tract infections. lower urinary tract fistulas. vesicoureteral reflux. cholecystitis. Ans: Cholecystitis Using a posteroanterior (PA) projection of the ribs with the patient in the anterior position in relation to the image receptor, the ______part of the ribs is best displayed. Ans: upper anterior An image is acquired using 75 kVp with 3 active automatic exposure control (AEC) cells. A second image is acquired with 121 kVp with 3 active AEC cells. How will the receptor exposure differ between the images? Ans: Both images will have aimilar exposures What semiconductor material is used an indirect flat panel imaging detectors? Ans: Amorphous silicon A 64-year-old man who is paralyzed from the waist down is in a wheelchair and needs to transfer onto the table for a pelvic radiography examination. The technologist asked a coworker to help with the transfer to the table. What should be done to make this transfer safe for the patient and technologists? Ans: The patient should cross both arms over their chest before the transfer. What are properties of xray beams? Ans: Can ionize matter Are invisible Travel in straight lines Can xray beams be fo