Diuretics make your pass more water, more often. This is because other drinks can most certainly affect the results of your test. However, doctors recommend that you only drink water and nothing else.
If you’re prone to fainting at the sight of blood or needles, staying hydrated can help. Why? As low blood pressure-a side effect of dehydration-causes dizziness and fainting. Either tap water or bottled water is fine, although you should avoid carbonated drinks.ĭrinking more water than usual is quite important for anybody who might not like blood tests. Blood tests aren’t like surgery, which requires you to avoid eating or drinking entirely. Having a slightly higher or lower level of water in your system doesn’t make a difference to blood tests. 2) Can You Drink Water Before a Blood Test?Ĭan you drink water while fasting for a blood test? Long story short, yes, you can. If you’re unsure whether to fast or not, ask your doctor, and they can tell you. That can keep your blood sugar levels high, which helps you recover afterward. In fact, if fasting isn’t required, it’s best that you eat more than you usually would before your test. That’s because the infection will be present whether you eat before the test or not. If your blood test measures hepatitis B or C, for example, there’s no need to fast. However, any blood test designed to measure infections won’t be affected. But, just like glucose, eating something high in fat before your test can significantly alter your results. Cholesterol tends to remain in the bloodstream for a long time. The point of this test is to identify the general level of cholesterol in your blood. Since a blood glucose test tests for diabetes, it’s vital not to affect the results too much. If that’s the case, then something as simple as taking a bite of chocolate an hour before your blood test can completely change the results. It’s important to fast before a glucose blood test because some people metabolize glucose quickly. From the list of blood tests, these are the most common you would need to fast for: That being said, you don’t have to fast before every kind of blood test. This is true for the majority of blood tests, which are called ‘ fasting blood tests.’ Your doctor should have told you not to eat anything in the hours leading up to your test-normally between eight and twelve hours. Make sure you don’t eat before your test. Unfortunately, because of time pressure and the fact that there’s a lot to take in, it’s easy to forget exactly what was said. When your doctor told you that you needed a blood test, they should tell you exactly what to do and what not to do. But, as you may know, you can’t go for a blood test straight away. Their wide use is why doctors often take blood tests during regular health check-ups. They can even diagnose thyroid conditions, certain kinds of cancer and more. Whether you have allergies like celiac disease, high cholesterol or low glucose.Whether you have a disease or a genetic medical condition.How well your liver, kidneys or lungs are working.
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