As a general rule, patients should avoid eating or drinking anything other than water during the 12 hours prior to any blood test. Blood tests specifically prohibiting alcohol consumption in the 24 hours prior to the administration include the triglyceride test and the gamma glutamyl transferase (GGT) test.Know More
Since trace amounts of alcohol may remain in the blood several days after consumption, patients are urged to refrain from excess alcohol intake for several days prior to any medical test or procedure, according to experts at the National Health Service.
Those that have recently consumed alcohol prior to a blood test are advised to discuss the matter with their physician to determine if the test should be postponed.Learn more about Diagnostics & Imaging
A patient fasting for blood tests may have water during his fast, according to Quest Diagnostics. It is advisable to drink a lot of water during the fast because it is harder for care providers to draw a patient's blood if the patient is dehydrated.Full Answer >
It is okay to drink water before having a blood test. According to NHS Choices, even when blood tests require fasting, the person being tested is still normally allowed to drink water.Full Answer >
Patients should fast for at least 12 hours before they have a fasting blood test, according to St. John Providence Health System. Not all blood tests require patients to fast, but those that do require that patients abstain from food or any type of beverage besides water before their test.Full Answer >
A blood urea nitrogen, or BUN, test is a blood test that determines the blood nitrogen level, according to WebMD. Typically, a doctor performs a BUN test to determine the efficiency of the kidneys, check the progress of kidney disease, and check the effectiveness of a kidney disease treatment.Full Answer >