CAMRT Radiography Practice Exam

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Prepare for the CAMRT Radiography Exam with our engaging quiz! Study with comprehensive questions that cover key radiography concepts and enhance your understanding. Gear up effectively for your certification test!

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What is the typical WL and WW of a lung window?

WL +50 / WW 350
WL +80 / WW 250
WL -500 / WW 1600
WL + 500 / WW 2000

The correct answer is: WL -500 / WW 1600

The typical window level (WL) and window width (WW) settings for a lung window are designed to provide optimal visibility of pulmonary structures. The window level, which centers the range of intensity values displayed, is often set around -500 for lung windows. This negative value helps enhance the visibility of the air-filled spaces within the lungs while keeping dense structures, like blood vessels and the cardiac silhouette, distinguishable. The window width, in this case, is set at approximately 1600. This wide range allows for a broad spectrum of pixel values to be displayed, which is important in differentiating between the varying densities found in lung tissue and allows for the detection of pathologies such as nodules or infiltrates. In contrast, other choices represent settings tailored for different anatomical assessments or densities, such as those used for soft tissue or bone. These settings are less effective for reviewing lung structures because they fail to adequately discriminate between the wide range of density variations found in the thoracic area.