Final answer:
The question involves identifying which devices are not used to reduce patient dose during medical exams. All options provided (grid, collimator, gonadal shield) are indeed used to minimize patient radiation exposure, which makes the question potentially misleading.
Step-by-step explanation:
The question asks which of the listed devices typically does not help reduce patient dose in a medical setting. A grid is designed to improve image quality and reduce scatter radiation reaching the image receptor, which can indirectly help reduce the number of repeat exposures due to poor quality images. A collimator reduces the size of the radiation beam, limiting exposure to the area of interest and thus reducing patient dose. A gonadal shield is specifically used to protect the gonads from receiving unnecessary radiation by directly shielding them during an X-ray procedure. Therefore, none of these devices are intended to increase patient dose; all are used to reduce it or to protect susceptible areas. However, this seems to be a trick question as all options given typically reduce patient dose.
Techniques used to manage patient exposure to radiation also involve using shielding materials, increasing the distance from the radiation source, limiting exposure time, and utilizing faster films or digital receptors that require less exposure.