Pediatric radiology encompasses specific considerations related to high sensitivity, adjustment of image acquisition parameters, and the need, in some cases, for the presence of a companion in the examination room. This underscores the importance of studying the doses received by these individuals and analyzing whether they fall within the accepted limits set by current regulations. Thus, this study investigates the dose values received by companions in different positions within the examination room, with the goal of determining the optimal position to minimize potential stochastic effects. Using Monte Carlo simulation, a radiographic scenario is modeled, involving a phantom representing a 10-year-old child and another representing a mother in various positions. Initially, the analysis is conducted using only a lead apron, followed by the complete set of Personal Protective Equipment (PPE). Effective doses are calculated using equations that take into account equivalent doses to organs/tissues, radiation energy deposition, and dose-area product. The results clearly indicate that the best position for the companion is perpendicular to the X-ray tube. Furthermore, when the full kit of protective equipment is used, there is an 11% reduction in dose compared to using only the lead apron. The study concludes that the companion’s position significantly impacts the dose and emphasizes the importance of proper positioning, PPE utilization, and patient immobilization to minimize radiation exposure. Additionally, the study suggests alternatives to manual immobilization, such as pillows, blankets, and straps, to further reduce the need for parental presence during the procedure.