Physical examination includes blood collection, ultrasound, electrocardiogram and X-ray. Blood collection generally checks routine blood, liver function, blood lipids, kidney function, ion, blood sugar, thyroid function test, hepatitis B, hepatitis C, syphilis, AIDS, which are the most common tests, and if you have cardiovascular disease, you also need to check blood homocysteine measurement, and electrocardiogram is required. Ultrasound can check heart ultrasound, gastrointestinal ultrasound, urological ultrasound, cervical vascular ultrasound and intracranial Doppler ultrasound. CT of the lungs or frontal and lateral radiographs of the lungs and chest, CT of the head or MRI of the head are usually taken. If you have pain in a joint, you can have an ortho-lateral radiograph or CT of the joint in question, or an angiogram if you have cardiovascular or cerebrovascular problems, but you will need to take medication for the angiogram, which may require an appointment at some hospitals and is expensive.