Question

Why might manual override of automatic collimators be necessary to use during fluoroscopy on small children?

1. In order to activate the automatic brightness conrol system
2. In order to utilize the entire image intensifier field
3. In order to use shorter exposure times
4. In order to collimate to the smallest possible beam size

Answer 1

The manual override of automatic collimators may be necessary during fluoroscopy on small children for reasons such as activating the automatic brightness control system, utilizing the entire image intensifier field, and reducing the child's radiation dose.

Step-by-step explanation:

The manual override of automatic collimators may be necessary during fluoroscopy on small children for a few reasons. First, it may be necessary to activate the automatic brightness control system to ensure that the image produced is of optimal brightness. Second, utilizing the entire image intensifier field may be important to capture all relevant information in the image. Lastly, using shorter exposure times can help reduce the child's overall radiation dose. Therefore, the manual override allows the operator to collimate the X-ray beam to the smallest possible size while still achieving these goals.