What is a key factor in reducing the risk of radiation exposure during CT scans?

Using protective shields and minimizing unnecessary scans is a crucial factor in reducing the risk of radiation exposure during CT scans. Protective shields, such as lead aprons or thyroid collars, can significantly absorb and reduce the amount of radiation that reaches sensitive organs, therefore helping to protect patients from unnecessary radiation dose.

Minimizing unnecessary scans is equally important; it ensures that patients are only exposed to radiation when absolutely necessary for diagnostic purposes. This approach not only limits exposure but also maintains the focus on performing scans that provide valuable clinical information. By assessing the necessity of each scan, healthcare providers can make informed decisions that prioritize patient safety while still delivering effective diagnostic care.

In contrast, increasing scan times could lead to higher radiation doses rather than reducing exposure. Limiting the use of contrast media does not directly affect radiation exposure since contrast agents are primarily used for enhancing image quality and not for determining radiation dose. Additionally, ensuring patients remain motionless is essential for obtaining clear images but does not inherently reduce radiation risk; it primarily serves to improve the effectiveness of the scan.