What is the potential impact of using a grid that is too high in ratio?

Using a grid that has a ratio that is too high can lead to increased patient exposure. A high-ratio grid is designed to improve image quality by better matching the incoming radiation beam to the detector; however, it also necessitates an increase in the overall exposure to maintain adequate image quality. This is because a higher grid ratio restricts more scattered radiation, but also means that more primary radiation is required to penetrate the grid and reach the image receptor.

As a result, the radiologic technologist or medical professional must compensate for this by increasing the exposure settings, which can inadvertently lead to a greater amount of radiation being delivered to the patient. This increased radiation dose can increase the risk of potential adverse effects, making it critical to select the appropriate grid ratio that balances image quality needs with patient safety effectively.