Which of the following exposure factor combinations will result in the least amount of radiation dose to the patient?

The combination of high kVp and low mAs results in the least amount of radiation dose to the patient due to how these factors interact to produce images.

High kVp, which stands for kilovolt peak, increases the energy of the X-ray photons. This higher energy allows the photons to penetrate the body more effectively, resulting in better image quality and the ability to visualize denser structures without needing excessive radiation exposure. Lowering the mAs, which represents milliamperes per second, reduces the quantity of X-ray photons generated. By using a higher kVp with a lower mAs, the overall patient exposure is minimized while still achieving adequate image quality.

This combination is often preferred in radiographic settings, as it balances the need for image clarity with patient safety by reducing the amount of radiation the patient receives during the procedure. High levels of radiation can lead to increased risk of radiation-induced effects, making it crucial to optimize exposure factors effectively.