What can happen if the mA is set too high during the use of moving grids?

When the milliampere (mA) setting is too high during fluoroscopy with moving grids, it can lead to an increased radiation dose to the patient. Higher mA settings result in a greater quantity of X-ray photons being produced, which directly correlates to the amount of radiation exposure received by the patient.

In fluoroscopy, the primary goal is to obtain clear images while ensuring patient safety and minimizing exposure to ionizing radiation. While moving grids can help reduce scatter radiation and improve image quality, setting the mA too high negates the safety aspect by unnecessarily increasing the dose.

Balancing mA is crucial in maintaining an appropriate level of image quality while adhering to the ALARA (As Low As Reasonably Achievable) principle, which is fundamental in radiological practices to protect patients from excessive exposure.