ARRT Radiography Final Exam Review QUESTIONS AND ANSWER 2024/2025 FULLY SOLVED 100%

ARRT Radiography Final Exam Review QUESTIONS AND ANSWER 2024/2025 FULLY SOLVED 100% Elongation (body part appears longer than normal) is caused by angulation along the ________ axis of the part being imaged. - Answer Long Foreshortening (body part appears shorter than normal) is caused by angulation against the ________ axis of the part being imaged. - Answer Main Grids are constructed of ________ strips separated by ________ interspacers. - Answer 1) Lead 2) Aluminum The height of the lead strips divided by the distance between the lead strips is known as: - Answer Grid Ratio Grid Ratio Formula: - Answer H/D The number of lead strips in a grid per inch (or centimeter) is known as: - Answer Grid Frequency The measure of the ability of a grid to increase contrast is the ________. - Answer Contrast Improvement Factor The ratio of primary radiation transmitted through the grid to secondary radiation transmitted through the grid is the ________. - Answer Grid Selectivity Grid conversion factor (GCF) is the amount of exposure ________ necessary to compensate for the ________ of image-forming x-rays and scatter in the cleanup process. - Answer 1) Increase 2) Absorption Grid conversion factor is also known as: - Answer Bucky Factor Value How do you calculate the new mAs required for a specific grid using the grid conversion factor? - Answer GCF of selected grid times the current mAs What is the grid conversion factor for a 5:1 grid? - Answer 2 What is the grid conversion factor for a 8:1 grid? - Answer 4 What is the grid conversion factor for a 12:1 grid? - Answer 5 What is the grid conversion factor for a 16:1 grid? - Answer 6