can you drink water when fasting for a blood test

Yes, you can drink water while fasting for a blood test. In fact, it is important to stay hydrated by drinking plenty of plain water during the fasting period. Drinking water does not affect the test results and can actually help make it easier to draw blood by keeping the veins plumper. However, other drinks like coffee, juice, sodas, or flavored water should be avoided as they can skew the results of the blood test. Always follow the specific fasting instructions given by your doctor or healthcare provider for the best results.