Whether or not blood tests for high blood pressure can be eaten needs to be determined by the test. Generally, blood routine can, while blood biochemistry can not. 1. You can eat: If the patient is checking the blood routine, mainly to test the blood cells, eating before the examination does not have a great impact on the results, so you can eat. 2. Can’t eat: If the patient check is blood biochemistry, inside the liver and kidney function, fasting glucose test results will be affected by food, resulting in abnormal results, the doctor to determine the disease is inaccurate, so it is best not to eat before doing this kind of test. In short, high blood pressure needs to be regularly reviewed, before doing the various tests, it is best to carefully consult the doctor, strictly in accordance with the doctor’s instructions.