The requirements of each outpatient examination vary, and are roughly divided into the following: 1. Imaging examinations (1), general X-ray examinations: you can take the results 1-2 hours after the film is taken, or you can go directly to the clinic and ask the doctor to look at the film from the computer without waiting for the results. You need to set aside about 1 hour from the time the doctor prescribes the test to the time you pay the fee to the time you take the film. Therefore, if you want to solve the problem in one outpatient visit, it is best to visit the clinic 2 hours before the clinic closes. (2), CT examination: the time to produce results is generally slower than X-ray, but basically the results can be produced on the same day, suitable for morning visits and afternoon results. (3) MRI: This is a very time-consuming test. You need to make an appointment at the MRI room first, and then go to the MRI room according to the appointment time. For example, abdominal ultrasound requires fasting and bladder ultrasound requires holding urine. Please communicate with your doctor in advance to determine what your ultrasound requirements are, and you need to make an appointment for ultrasound. 3. Many of the blood tests and basic tests require fasting. It is recommended to communicate with the doctor in advance to determine the tests you need to do and special requirements.