HESI V1 exam 2022/2023 with 100% correct answers

On which system does hospital staff input new orders for radiologic examinations? Hospital information system. Which technique produces a 2 milliroentgens (mR) exposure to an image receptor plate if 70 kilovolts peak (kVp) at 25 milliampere-seconds (mAs) produces 1.6 mR? 70 kVp at 31.25 mAs. Which technique mimics the use of a grid? Increased object-to-image-receptor-distance (OID). How can magnification of the heart be reduced when performing a chest x-ray? Use a 72-inch source-image-receptor-distance (SID). Where is edge enhancement post processing most helpful in digital radiography? Low contrast situations Which change should be made when performing an abdomen radiograph on a patient with ascites? Raise exposure factors Prior to performing a posteroanterior (PA) chest projection with automatic exposure control (AEC), the radiographer discovers that the patient has had a right total pneumonectomy. Which technical consideration should be considered? Selecting only the detector on the left side. Which part of the x-ray circuit is controlled by adjusting the milliamperage (mA) setting on the operating console for the purpose of producing the heat necessary for thermionic emission? Filament circuit Picture archiving and communication system (PACS) networks are capable of performing which functions? (Select the two that apply.) -Transmitting diagnostic images to remote work stations. -Downloading images from different imaging modalities. What is the longest field size dimension allowable for 10 inches by 12 inches collimation at a 40 inch source to image distance (SID)? 12.8 inches. Which step will reduce digital image noise, assuming no other changes? Longer exposure time. Which standard governs communication between the system that contains the patient's full medical information and the system that has radiology-specific data? Health level 7 (HL-7). How often should lead aprons be evaluated to determine if cracks or holes are present? Annually