A person should only fast before a blood test if their doctor or healthcare professional specifically instructs them to do so. Not all blood tests require fasting. If a doctor or healthcare ...

Blood tests are common procedures that healthcare providers use to diagnose certain health conditions and check the status of important measurements like your cholesterol levels or blood sugar. In ...

Some common blood tests require you to fast beforehand to help make sure the test results are as accurate as possible. You can typically still drink water during this period, but is drinking tea ...