Which two characteristics are true about fluoroscopic grids?

The correct choice highlights a key feature of fluoroscopic grids in that the ratios of these grids can indeed be comparable to those used in radiography. This characteristic is significant because it indicates that fluoroscopic grids are designed to function effectively at similar grid ratios, thus enhancing their role in improving image quality during fluoroscopic procedures.

Fluoroscopic grids are specifically created to help manage scatter radiation, which can obscure image quality. By offering grid ratios that are in line with those found in conventional radiographic applications, they ensure that healthcare professionals can achieve optimal contrast in the images captured during a fluoroscopy session. The similarity in grid ratios underscores their effectiveness in enhancing the diagnostic capability of fluoroscopic imaging.

Other options present misconceptions about the use and importance of fluoroscopic grids. For instance, saying that fluoroscopy grids are only used for pediatric patients is inaccurate, as they are utilized across various patient demographics based on imaging needs rather than age alone. Furthermore, it is crucial to understand that while some imaging could be performed without grids, they are an essential component for high-quality imaging in a substantial number of fluoroscopy cases, thereby negating the claim that they are not essential for image quality.