Enhanced CT can be done on the chest and both kidneys at the same time. Enhanced CT requires intravenous injection of contrast medium to achieve the purpose of visualization. Compared with normal CT, enhanced CT can see the lesions of different organs more clearly, and the contrast medium can flow to the whole body through blood vessels, so enhanced CT of chest and both kidneys can be done at the same time. When doing enhanced CT, due to the different physical condition of individuals, certain adverse reactions may occur, such as nausea, vomiting, skin rash, etc. It is necessary for radiologists to closely observe the changes in the vital signs of the patients, and if serious adverse reactions or allergic reactions occur, immediate resuscitation is required. Fasting should be done before the enhanced CT to avoid causing gastrointestinal discomfort, and at the same time, relax, do not be too nervous, and drink plenty of water to help the contrast agent out of the body after it is done.