First off, it’s not currently recommended to perform CT Chest on all suspected Covid patients.

If you’re doing a CT Chest for rule-out Covid-19 you must put this in the order comments/indication. If you’re scanning a patient who is under isolation precautions due to possible Covid, and order a CT PE Protocol, put Possible Covid, Rule-Out PE. The reason behind this is they’ll take the patient to the basement so that they don’t have to shut down the ED scanner. Thanks.