| Retail: $5Approved for .25 Category A CE Credits
Using geometric and trigonometric principles can help radiographers determine proper distance and central ray alignment when angulation of the tube is required. Primary consequences of using incorrect distance are increased radiation exposure to the patient and changes to magnification of the part and spatial resolution. Although calculations can be performed before or during the examination, technologists can refer to a chart containing the preferred source-to-image distances and tube angles for the more common axial views encountered in a diagnostic radiology department.
This quiz is the companion to the column, "Using Geometric and Trigonometric Principles to Simplify Axial and Tangential Projections," which appears in the March/April 2020 Radiologic Technology journal.
This activity may be available in multiple formats or from different sponsors. ARRT regulations state that an individual may not repeat a self-learning activity for credit if it was reported in the same biennium.
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Online version of Radiologic Technology
