Do cranial angiogram examination notice what, need to fast water

Hello, before angiogram, you need an empty stomach. You should fast, prohibit water, and avoid intraoperative nausea and vomiting. Keep quiet and do not turn your head. And not all patients can do cerebrovascular angiography, iodine allergy, serious bleeding tendency, have serious heart, kidney, liver insufficiency of cerebrovascular angiography. After the end of angiography, the patient should lie flat, and keep the lower extremity imbibition for no less than 8 hours. Drink plenty of water to facilitate the discharge of contrast agent, and try not to eat a high-protein diet within 24 hours.