5 Things to note when performing ECG and cerebral blood flow examinations

Alcohol can speed up the blood and heartbeat, and even induce arrhythmia or arrhythmia. Therefore, it is recommended to take alcohol within 24 hours before taking an ECG. It is necessary to abstain from alcohol to avoid misdiagnosis. Cerebral blood flow diagram after drinking alcohol will accelerate cerebral blood flow, causing the illusion of vascular obstruction.

6 Things to pay attention to before ultrasonic examination

Fasting should be done before abdominal B-mode ultrasonic examination. The purpose is to reduce the impact of food after meals on the judgment of the results. As long as the examination = do not eat breakfast on the day Yes, it is not necessary to fast for gynecological B-ultrasound and prostate B-ultrasound, but you must drink plenty of water before the examination to store urine and help with accurate imaging.

7 Things to pay attention to before abdominal CT examination

Abdominal CT examination requires fasting and water deprivation for 6-8 hours. Patients with lower abdominal lesions should start eating a small amount 4 days before the examination. Take a laxative once orally to minimize the long contents of the stomach until it is emptied. Patients who have a biliary system examination should eat less fatty food at noon the day before to expel the thick bile in the gallbladder.

8 Things to note before anal examination

The fecal occult blood test mainly checks whether there is occult blood in the stool and is used to check whether there is bleeding in the gastrointestinal tract. If you eat a lot of iron-rich foods before the test or drugs, will affect the test results and cause false positives. Therefore, it is not advisable to eat all kinds of animal blood, animal liver, meat, egg yolks or iron-rich longan, grapes, red dates, etc. before the test. These will interfere with the test results and cause false positives. Positive.

Physical examinees can choose egg protein, duck protein, beans and bean products, and vegetables without chlorophyll, such as cauliflower, cabbage, bean sprouts, etc.