How long should you fast before blood work labcorp?

Typically, fasting for 9-12 hours (drinking water only) before having your blood drawn is required, but some healthcare practitioners allow non-fasting lipid testing. In particular, children, teens and young adults (ages 2 to 24) may have testing done without fasting.

Can you drink water while fasting labcorp?

If you are having fasting blood work, the laboratory and best practices recommend a 12-14 hour fast – do not eat or drink anything after dinner. Fasting does include abstaining from coffee, tea, chewing gum and sugar free products. Please drink plenty of water to keep from becoming dehydrated.

How many hours should you fast before blood work?

You usually need to fast for 8–12 hours before a test. Most tests that require fasting are scheduled for early in the morning. That way, most of your fasting time will be overnight.

What is fasting labcorp?

Fasting (not eating any or certain foods) for several hours or even overnight. Drinking more or less water than usual. Avoiding certain medications or vitamin and herbal supplements prior to testing.

Which blood tests require fasting?

Blood tests that you will likely need to fast for include: blood glucose test. liver function test. cholesterol test. triglyceride level test. high-density lipoprotein (HDL) level test. low-density lipoprotein (LDL) level test. basic metabolic panel.

What do blood tests need fasting preparation?

You don’t need to fast before all blood tests. Your doctor will tell you if you need to. These tests typically require fasting: Fasting blood glucose measures the amount of glucose ( sugar) in your blood to test for diabetes or prediabetes. Lipid profile is used to check the level of cholesterol and other blood fats.

What are the guidelines for a fasting blood test?

Here are some guidelines for fasting for a blood tests: It is important that you do not eat or drink anything but water. You should not eat anything at least 8 hours prior to your test. It is important to fast for at least 12 hours if your doctor has ordered lipid tests.

Why is fasting before blood test?

A fasting blood glucose test measures levels of sugar in the blood to see if they are healthy. It is important that a person has not had anything to eat or drink other than water for 8 to 10 hours before a fasting blood glucose test . Fasting helps ensure that the blood test records an accurate measure of fasting blood sugar levels.