Chest CT can be done once in half a month and is not recommended to be performed intensely for a long period of time.
If you need to have a CT examination of the lungs once in half a month due to lung infection and other reasons of your own disease, you can have it for a short period of time. If it is not a long-term high-frequency CT examination, the damage caused to the body is relatively small. And you need to focus on the treatment of the underlying disease and control it before you can consider slowing down the frequency of the examination.
In addition, if there is no underlying disease for reasons such as performing a physical examination, it is not recommended to perform lung CT examinations every half a month. The need for it is relatively small, and even in the case of the presence of lung nodules, etc., the examination is done only as prescribed by the doctor.
Therefore, if there is an underlying disease, it is sufficient to follow the doctor’s instructions, and there is no need for a high-frequency examination for the purpose of a physical examination.