Using the ALARA concept, which of the following actions is NOT included?

The ALARA (As Low As Reasonably Achievable) principle emphasizes minimizing radiation exposure to patients and healthcare workers while obtaining necessary diagnostic information. This principle encourages the use of methods and barriers that effectively reduce radiation dose.

The action of using a circular PID (Position Indicating Device) is considered less effective in minimizing the radiation exposure to the patient compared to a rectangular PID. A rectangular PID better collimates the beam to the size of the image receptor, reducing the amount of scatter radiation that contributes to patient dose. Therefore, using a circular PID is not aligned with the goal of ALARA because it does not optimize radiation protection as efficiently as the other methods.

In contrast, actions such as draping the patient with a thyroid collar and a lead apron help shield sensitive areas of the body from unnecessary radiation. These options directly contribute to lowering overall exposure and adhere to the ALARA principles, making them appropriate actions within this context. Using a rectangular PID is also a key practice within the ALARA framework, as it enhances beam collimation and minimizes radiation leakage.

Thus, the choice that does not align with the objectives of ALARA is the use of a circular PID, as it does not effectively reduce radiation dose compared to other options.