Can You Drink Water Before A Fasting Blood Test

A healthcare provider will let you know if and for how long you need to avoid eating.

Can you drink water before a fasting blood test. In terms of some blood tests the patient will be required to not consume anything for a longer period which is usually up to twelve hours. Here are some guidelines for fasting for a blood tests. Dont wait until the day of your blood draw to ask if you should fast.

Why is water okay to drink while Im fasting. Most blood tests that require a fasting element will expect the patients not to have anything but clear water for eight to nine hours before and leading up to the blood being taken. It is important that you do not eat or drink anything but water.

But if youre having a fasting blood test you will be told not to eat or drink anything other than water beforehand. Water is allowed though. It is often the first test done to check for diabetes a condition caused by too much sugar in the blood.

You may also be told not to smoke before your test. So if your appointment is at 8 am. With certain blood tests you may be instructed to fast for up to eight hours before your appointment.

This is because the components of food vary the composition of the blood which leads to wrong results. Fasting blood sugar FBS For a fasting blood sugar test do not eat or drink anything other than water for at least 8 hours before the blood sample is taken. Many types of blood tests dont require you to fast.

Fasting for a blood test entails avoiding all food and beverages except for water for 8 to 12 hours prior to the test. Fasting means that you eat and drink nothing except water for 8 16 hours before your blood test 12 hours optimal. That could cause your appointment to be rescheduled.